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Finding the Fourth Proportional to 648,251.60, 970,409.10 and 577,392.80

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Solution

The fourth proportional to 648,251.60, 970,409.10 and 577,392.80 is: 864,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,251.60 : 970,409.10 = 577,392.80 : x
  2. Step 2: Convert to fraction form
    648,251.60/970,409.10 = 577,392.80/x
  3. Step 3: Cross multiply
    648,251.60x = 970,409.10 × 577,392.80
  4. Step 4: Simplify right side
    648,251.60x = 560,307,227,394.48
  5. Step 5: Solve for x
    x = 560,307,227,394.48/648,251.60
  6. Step 6: Final answer
    x = 864,336.05

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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.