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Finding the Fourth Proportional to 855,959.70, 1,284,861.15 and 482,711.70

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Solution

The fourth proportional to 855,959.70, 1,284,861.15 and 482,711.70 is: 724,587.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,959.70 : 1,284,861.15 = 482,711.70 : x
  2. Step 2: Convert to fraction form
    855,959.70/1,284,861.15 = 482,711.70/x
  3. Step 3: Cross multiply
    855,959.70x = 1,284,861.15 × 482,711.70
  4. Step 4: Simplify right side
    855,959.70x = 620,217,509,980.46
  5. Step 5: Solve for x
    x = 620,217,509,980.46/855,959.70
  6. Step 6: Final answer
    x = 724,587.28

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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.