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Finding the Fourth Proportional to 477,538.16, 658,502.28 and 356,485.28

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Solution

The fourth proportional to 477,538.16, 658,502.28 and 356,485.28 is: 491,576.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,538.16 : 658,502.28 = 356,485.28 : x
  2. Step 2: Convert to fraction form
    477,538.16/658,502.28 = 356,485.28/x
  3. Step 3: Cross multiply
    477,538.16x = 658,502.28 × 356,485.28
  4. Step 4: Simplify right side
    477,538.16x = 234,746,369,666.44
  5. Step 5: Solve for x
    x = 234,746,369,666.44/477,538.16
  6. Step 6: Final answer
    x = 491,576.15

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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.