Home / 889,411.12-1,227,378.54-481,502.20

Finding the Fourth Proportional to 889,411.12, 1,227,378.54 and 481,502.20

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Solution

The fourth proportional to 889,411.12, 1,227,378.54 and 481,502.20 is: 664,468.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,411.12 : 1,227,378.54 = 481,502.20 : x
  2. Step 2: Convert to fraction form
    889,411.12/1,227,378.54 = 481,502.20/x
  3. Step 3: Cross multiply
    889,411.12x = 1,227,378.54 × 481,502.20
  4. Step 4: Simplify right side
    889,411.12x = 590,985,467,242.79
  5. Step 5: Solve for x
    x = 590,985,467,242.79/889,411.12
  6. Step 6: Final answer
    x = 664,468.27

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Half scale
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Double scale
Find fourth proportional to 889,412.12, 1,227,379.92 and 481,503.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.