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Finding the Fourth Proportional to 624,589.60, 936,744.12 and 287,306.29

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Solution

The fourth proportional to 624,589.60, 936,744.12 and 287,306.29 is: 430,894.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,589.60 : 936,744.12 = 287,306.29 : x
  2. Step 2: Convert to fraction form
    624,589.60/936,744.12 = 287,306.29/x
  3. Step 3: Cross multiply
    624,589.60x = 936,744.12 × 287,306.29
  4. Step 4: Simplify right side
    624,589.60x = 269,132,477,796.52
  5. Step 5: Solve for x
    x = 269,132,477,796.52/624,589.60
  6. Step 6: Final answer
    x = 430,894.91

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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.