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Finding the Fourth Proportional to 1,859,715, 2,789,572.50 and 458,883

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Solution

The fourth proportional to 1,859,715, 2,789,572.50 and 458,883 is: 688,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859,715 : 2,789,572.50 = 458,883 : x
  2. Step 2: Convert to fraction form
    1,859,715/2,789,572.50 = 458,883/x
  3. Step 3: Cross multiply
    1,859,715x = 2,789,572.50 × 458,883
  4. Step 4: Simplify right side
    1,859,715x = 1,280,087,397,517.50
  5. Step 5: Solve for x
    x = 1,280,087,397,517.50/1,859,715
  6. Step 6: Final answer
    x = 688,324.50

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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.