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Finding the Fourth Proportional to 476,830.92, 657,999.42 and 261,966.70

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Solution

The fourth proportional to 476,830.92, 657,999.42 and 261,966.70 is: 361,499.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,830.92 : 657,999.42 = 261,966.70 : x
  2. Step 2: Convert to fraction form
    476,830.92/657,999.42 = 261,966.70/x
  3. Step 3: Cross multiply
    476,830.92x = 657,999.42 × 261,966.70
  4. Step 4: Simplify right side
    476,830.92x = 172,373,936,659.31
  5. Step 5: Solve for x
    x = 172,373,936,659.31/476,830.92
  6. Step 6: Final answer
    x = 361,499.08

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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.