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Finding the Fourth Proportional to 652,221.90, 978,502.95 and 252,875.70

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Solution

The fourth proportional to 652,221.90, 978,502.95 and 252,875.70 is: 379,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,221.90 : 978,502.95 = 252,875.70 : x
  2. Step 2: Convert to fraction form
    652,221.90/978,502.95 = 252,875.70/x
  3. Step 3: Cross multiply
    652,221.90x = 978,502.95 × 252,875.70
  4. Step 4: Simplify right side
    652,221.90x = 247,439,618,433.32
  5. Step 5: Solve for x
    x = 247,439,618,433.32/652,221.90
  6. Step 6: Final answer
    x = 379,379.50

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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.