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Finding the Fourth Proportional to 867,558.89, 1,300,891.82 and 508,431.62

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Solution

The fourth proportional to 867,558.89, 1,300,891.82 and 508,431.62 is: 762,385.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,558.89 : 1,300,891.82 = 508,431.62 : x
  2. Step 2: Convert to fraction form
    867,558.89/1,300,891.82 = 508,431.62/x
  3. Step 3: Cross multiply
    867,558.89x = 1,300,891.82 × 508,431.62
  4. Step 4: Simplify right side
    867,558.89x = 661,414,526,440.73
  5. Step 5: Solve for x
    x = 661,414,526,440.73/867,558.89
  6. Step 6: Final answer
    x = 762,385.74

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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.