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Finding the Fourth Proportional to 478,319.28, 717,478.92 and 416,733.36

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Solution

The fourth proportional to 478,319.28, 717,478.92 and 416,733.36 is: 625,100.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,319.28 : 717,478.92 = 416,733.36 : x
  2. Step 2: Convert to fraction form
    478,319.28/717,478.92 = 416,733.36/x
  3. Step 3: Cross multiply
    478,319.28x = 717,478.92 × 416,733.36
  4. Step 4: Simplify right side
    478,319.28x = 298,997,401,060.77
  5. Step 5: Solve for x
    x = 298,997,401,060.77/478,319.28
  6. Step 6: Final answer
    x = 625,100.04

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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.