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Finding the Fourth Proportional to 652,439.80, 978,688.86 and 337,511.80

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Solution

The fourth proportional to 652,439.80, 978,688.86 and 337,511.80 is: 506,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,439.80 : 978,688.86 = 337,511.80 : x
  2. Step 2: Convert to fraction form
    652,439.80/978,688.86 = 337,511.80/x
  3. Step 3: Cross multiply
    652,439.80x = 978,688.86 × 337,511.80
  4. Step 4: Simplify right side
    652,439.80x = 330,319,038,778.55
  5. Step 5: Solve for x
    x = 330,319,038,778.55/652,439.80
  6. Step 6: Final answer
    x = 506,282.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.