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Finding the Fourth Proportional to 560,572.72, 840,358.98 and 205,503.82

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Solution

The fourth proportional to 560,572.72, 840,358.98 and 205,503.82 is: 308,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,572.72 : 840,358.98 = 205,503.82 : x
  2. Step 2: Convert to fraction form
    560,572.72/840,358.98 = 205,503.82/x
  3. Step 3: Cross multiply
    560,572.72x = 840,358.98 × 205,503.82
  4. Step 4: Simplify right side
    560,572.72x = 172,696,980,561.30
  5. Step 5: Solve for x
    x = 172,696,980,561.30/560,572.72
  6. Step 6: Final answer
    x = 308,072.40

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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.