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Finding the Fourth Proportional to 657,028.16, 906,729.72 and 370,542.32

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Solution

The fourth proportional to 657,028.16, 906,729.72 and 370,542.32 is: 511,365.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,028.16 : 906,729.72 = 370,542.32 : x
  2. Step 2: Convert to fraction form
    657,028.16/906,729.72 = 370,542.32/x
  3. Step 3: Cross multiply
    657,028.16x = 906,729.72 × 370,542.32
  4. Step 4: Simplify right side
    657,028.16x = 335,981,734,061.75
  5. Step 5: Solve for x
    x = 335,981,734,061.75/657,028.16
  6. Step 6: Final answer
    x = 511,365.81

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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.