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Finding the Fourth Proportional to 560,572.71, 840,358.98 and 205,503.81

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Solution

The fourth proportional to 560,572.71, 840,358.98 and 205,503.81 is: 308,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,572.71 : 840,358.98 = 205,503.81 : x
  2. Step 2: Convert to fraction form
    560,572.71/840,358.98 = 205,503.81/x
  3. Step 3: Cross multiply
    560,572.71x = 840,358.98 × 205,503.81
  4. Step 4: Simplify right side
    560,572.71x = 172,696,972,157.71
  5. Step 5: Solve for x
    x = 172,696,972,157.71/560,572.71
  6. Step 6: Final answer
    x = 308,072.39

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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.