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Finding the Fourth Proportional to 702,940.52, 970,056.17 and 380,650.62

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Solution

The fourth proportional to 702,940.52, 970,056.17 and 380,650.62 is: 525,296.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,940.52 : 970,056.17 = 380,650.62 : x
  2. Step 2: Convert to fraction form
    702,940.52/970,056.17 = 380,650.62/x
  3. Step 3: Cross multiply
    702,940.52x = 970,056.17 × 380,650.62
  4. Step 4: Simplify right side
    702,940.52x = 369,252,482,545.33
  5. Step 5: Solve for x
    x = 369,252,482,545.33/702,940.52
  6. Step 6: Final answer
    x = 525,296.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.