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Finding the Fourth Proportional to 622,254.32, 858,455.52 and 461,504.96

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Solution

The fourth proportional to 622,254.32, 858,455.52 and 461,504.96 is: 636,687.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,254.32 : 858,455.52 = 461,504.96 : x
  2. Step 2: Convert to fraction form
    622,254.32/858,455.52 = 461,504.96/x
  3. Step 3: Cross multiply
    622,254.32x = 858,455.52 × 461,504.96
  4. Step 4: Simplify right side
    622,254.32x = 396,181,480,419.38
  5. Step 5: Solve for x
    x = 396,181,480,419.38/622,254.32
  6. Step 6: Final answer
    x = 636,687.39

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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.