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Finding the Fourth Proportional to 647,131.30, 970,696.95 and 610,389.70

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Solution

The fourth proportional to 647,131.30, 970,696.95 and 610,389.70 is: 915,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,131.30 : 970,696.95 = 610,389.70 : x
  2. Step 2: Convert to fraction form
    647,131.30/970,696.95 = 610,389.70/x
  3. Step 3: Cross multiply
    647,131.30x = 970,696.95 × 610,389.70
  4. Step 4: Simplify right side
    647,131.30x = 592,503,420,101.42
  5. Step 5: Solve for x
    x = 592,503,420,101.42/647,131.30
  6. Step 6: Final answer
    x = 915,584.55

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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.