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Finding the Fourth Proportional to 866,551.80, 1,300,466.52 and 411,144.96

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Solution

The fourth proportional to 866,551.80, 1,300,466.52 and 411,144.96 is: 617,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,551.80 : 1,300,466.52 = 411,144.96 : x
  2. Step 2: Convert to fraction form
    866,551.80/1,300,466.52 = 411,144.96/x
  3. Step 3: Cross multiply
    866,551.80x = 1,300,466.52 × 411,144.96
  4. Step 4: Simplify right side
    866,551.80x = 534,680,255,346.74
  5. Step 5: Solve for x
    x = 534,680,255,346.74/866,551.80
  6. Step 6: Final answer
    x = 617,020.54

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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.