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Finding the Fourth Proportional to 648,171.10, 894,476.16 and 357,782.73

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Solution

The fourth proportional to 648,171.10, 894,476.16 and 357,782.73 is: 493,740.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,171.10 : 894,476.16 = 357,782.73 : x
  2. Step 2: Convert to fraction form
    648,171.10/894,476.16 = 357,782.73/x
  3. Step 3: Cross multiply
    648,171.10x = 894,476.16 × 357,782.73
  4. Step 4: Simplify right side
    648,171.10x = 320,028,122,444.72
  5. Step 5: Solve for x
    x = 320,028,122,444.72/648,171.10
  6. Step 6: Final answer
    x = 493,740.19

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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.