Home / 870,138.56-1,304,931.36-591,446.72

Finding the Fourth Proportional to 870,138.56, 1,304,931.36 and 591,446.72

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Solution

The fourth proportional to 870,138.56, 1,304,931.36 and 591,446.72 is: 886,982.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,138.56 : 1,304,931.36 = 591,446.72 : x
  2. Step 2: Convert to fraction form
    870,138.56/1,304,931.36 = 591,446.72/x
  3. Step 3: Cross multiply
    870,138.56x = 1,304,931.36 × 591,446.72
  4. Step 4: Simplify right side
    870,138.56x = 771,797,372,697.14
  5. Step 5: Solve for x
    x = 771,797,372,697.14/870,138.56
  6. Step 6: Final answer
    x = 886,982.15

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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.