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Finding the Fourth Proportional to 415,098.30, 622,647.45 and 374,420.10

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Solution

The fourth proportional to 415,098.30, 622,647.45 and 374,420.10 is: 561,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,098.30 : 622,647.45 = 374,420.10 : x
  2. Step 2: Convert to fraction form
    415,098.30/622,647.45 = 374,420.10/x
  3. Step 3: Cross multiply
    415,098.30x = 622,647.45 × 374,420.10
  4. Step 4: Simplify right side
    415,098.30x = 233,131,720,493.75
  5. Step 5: Solve for x
    x = 233,131,720,493.75/415,098.30
  6. Step 6: Final answer
    x = 561,630.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.