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Finding the Fourth Proportional to 560,559.17, 840,338.78 and 205,490.30

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Solution

The fourth proportional to 560,559.17, 840,338.78 and 205,490.30 is: 308,052.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,559.17 : 840,338.78 = 205,490.30 : x
  2. Step 2: Convert to fraction form
    560,559.17/840,338.78 = 205,490.30/x
  3. Step 3: Cross multiply
    560,559.17x = 840,338.78 × 205,490.30
  4. Step 4: Simplify right side
    560,559.17x = 172,681,462,774.69
  5. Step 5: Solve for x
    x = 172,681,462,774.69/560,559.17
  6. Step 6: Final answer
    x = 308,052.16

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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.