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Finding the Fourth Proportional to 560,301.32, 840,607.50 and 311,158.28

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Solution

The fourth proportional to 560,301.32, 840,607.50 and 311,158.28 is: 466,823.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,301.32 : 840,607.50 = 311,158.28 : x
  2. Step 2: Convert to fraction form
    560,301.32/840,607.50 = 311,158.28/x
  3. Step 3: Cross multiply
    560,301.32x = 840,607.50 × 311,158.28
  4. Step 4: Simplify right side
    560,301.32x = 261,561,983,855.10
  5. Step 5: Solve for x
    x = 261,561,983,855.10/560,301.32
  6. Step 6: Final answer
    x = 466,823.79

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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.