Home / 657,348.13-907,140.48-355,542.13

Finding the Fourth Proportional to 657,348.13, 907,140.48 and 355,542.13

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Solution

The fourth proportional to 657,348.13, 907,140.48 and 355,542.13 is: 490,648.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,348.13 : 907,140.48 = 355,542.13 : x
  2. Step 2: Convert to fraction form
    657,348.13/907,140.48 = 355,542.13/x
  3. Step 3: Cross multiply
    657,348.13x = 907,140.48 × 355,542.13
  4. Step 4: Simplify right side
    657,348.13x = 322,526,658,468.42
  5. Step 5: Solve for x
    x = 322,526,658,468.42/657,348.13
  6. Step 6: Final answer
    x = 490,648.17

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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.