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Finding the Fourth Proportional to 508,713.70, 763,070.55 and 479,683.30

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Solution

The fourth proportional to 508,713.70, 763,070.55 and 479,683.30 is: 719,524.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,713.70 : 763,070.55 = 479,683.30 : x
  2. Step 2: Convert to fraction form
    508,713.70/763,070.55 = 479,683.30/x
  3. Step 3: Cross multiply
    508,713.70x = 763,070.55 × 479,683.30
  4. Step 4: Simplify right side
    508,713.70x = 366,032,199,556.82
  5. Step 5: Solve for x
    x = 366,032,199,556.82/508,713.70
  6. Step 6: Final answer
    x = 719,524.95

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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.