Home / 889,328.11-1,227,271.38-481,429.85

Finding the Fourth Proportional to 889,328.11, 1,227,271.38 and 481,429.85

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Solution

The fourth proportional to 889,328.11, 1,227,271.38 and 481,429.85 is: 664,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,328.11 : 1,227,271.38 = 481,429.85 : x
  2. Step 2: Convert to fraction form
    889,328.11/1,227,271.38 = 481,429.85/x
  3. Step 3: Cross multiply
    889,328.11x = 1,227,271.38 × 481,429.85
  4. Step 4: Simplify right side
    889,328.11x = 590,845,071,149.02
  5. Step 5: Solve for x
    x = 590,845,071,149.02/889,328.11
  6. Step 6: Final answer
    x = 664,372.42

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Double scale
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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.