Home / 476,487.80-657,587.68-315,062.90

Finding the Fourth Proportional to 476,487.80, 657,587.68 and 315,062.90

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Solution

The fourth proportional to 476,487.80, 657,587.68 and 315,062.90 is: 434,809.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,487.80 : 657,587.68 = 315,062.90 : x
  2. Step 2: Convert to fraction form
    476,487.80/657,587.68 = 315,062.90/x
  3. Step 3: Cross multiply
    476,487.80x = 657,587.68 × 315,062.90
  4. Step 4: Simplify right side
    476,487.80x = 207,181,481,465.07
  5. Step 5: Solve for x
    x = 207,181,481,465.07/476,487.80
  6. Step 6: Final answer
    x = 434,809.62

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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.