Home / 749,304.40-1,123,956.60-520,981.60

Finding the Fourth Proportional to 749,304.40, 1,123,956.60 and 520,981.60

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Solution

The fourth proportional to 749,304.40, 1,123,956.60 and 520,981.60 is: 781,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,304.40 : 1,123,956.60 = 520,981.60 : x
  2. Step 2: Convert to fraction form
    749,304.40/1,123,956.60 = 520,981.60/x
  3. Step 3: Cross multiply
    749,304.40x = 1,123,956.60 × 520,981.60
  4. Step 4: Simplify right side
    749,304.40x = 585,560,707,798.56
  5. Step 5: Solve for x
    x = 585,560,707,798.56/749,304.40
  6. Step 6: Final answer
    x = 781,472.40

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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.