Home / 657,355.20-907,150.14-355,549.20

Finding the Fourth Proportional to 657,355.20, 907,150.14 and 355,549.20

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Solution

The fourth proportional to 657,355.20, 907,150.14 and 355,549.20 is: 490,657.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,355.20 : 907,150.14 = 355,549.20 : x
  2. Step 2: Convert to fraction form
    657,355.20/907,150.14 = 355,549.20/x
  3. Step 3: Cross multiply
    657,355.20x = 907,150.14 × 355,549.20
  4. Step 4: Simplify right side
    657,355.20x = 322,536,506,556.89
  5. Step 5: Solve for x
    x = 322,536,506,556.89/657,355.20
  6. Step 6: Final answer
    x = 490,657.88

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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.