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Finding the Fourth Proportional to 560,557.67, 840,336.53 and 205,488.80

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Solution

The fourth proportional to 560,557.67, 840,336.53 and 205,488.80 is: 308,049.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,557.67 : 840,336.53 = 205,488.80 : x
  2. Step 2: Convert to fraction form
    560,557.67/840,336.53 = 205,488.80/x
  3. Step 3: Cross multiply
    560,557.67x = 840,336.53 × 205,488.80
  4. Step 4: Simplify right side
    560,557.67x = 172,679,743,068.00
  5. Step 5: Solve for x
    x = 172,679,743,068.00/560,557.67
  6. Step 6: Final answer
    x = 308,049.92

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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.