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Finding the Fourth Proportional to 478,316.78, 717,475.17 and 416,730.86

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Solution

The fourth proportional to 478,316.78, 717,475.17 and 416,730.86 is: 625,096.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,316.78 : 717,475.17 = 416,730.86 : x
  2. Step 2: Convert to fraction form
    478,316.78/717,475.17 = 416,730.86/x
  3. Step 3: Cross multiply
    478,316.78x = 717,475.17 × 416,730.86
  4. Step 4: Simplify right side
    478,316.78x = 298,994,044,622.75
  5. Step 5: Solve for x
    x = 298,994,044,622.75/478,316.78
  6. Step 6: Final answer
    x = 625,096.29

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Similar ratio
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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.