Home / 657,270.19-907,041.68-370,789.39

Finding the Fourth Proportional to 657,270.19, 907,041.68 and 370,789.39

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Solution

The fourth proportional to 657,270.19, 907,041.68 and 370,789.39 is: 511,694.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,270.19 : 907,041.68 = 370,789.39 : x
  2. Step 2: Convert to fraction form
    657,270.19/907,041.68 = 370,789.39/x
  3. Step 3: Cross multiply
    657,270.19x = 907,041.68 × 370,789.39
  4. Step 4: Simplify right side
    657,270.19x = 336,321,431,231.78
  5. Step 5: Solve for x
    x = 336,321,431,231.78/657,270.19
  6. Step 6: Final answer
    x = 511,694.33

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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.