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Finding the Fourth Proportional to 506,476.80, 699,217.92 and 336,960

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Solution

The fourth proportional to 506,476.80, 699,217.92 and 336,960 is: 465,191.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,476.80 : 699,217.92 = 336,960 : x
  2. Step 2: Convert to fraction form
    506,476.80/699,217.92 = 336,960/x
  3. Step 3: Cross multiply
    506,476.80x = 699,217.92 × 336,960
  4. Step 4: Simplify right side
    506,476.80x = 235,608,470,323.20
  5. Step 5: Solve for x
    x = 235,608,470,323.20/506,476.80
  6. Step 6: Final answer
    x = 465,191.04

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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.