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Finding the Fourth Proportional to 656,395.60, 984,031.75 and 251,878.08

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Solution

The fourth proportional to 656,395.60, 984,031.75 and 251,878.08 is: 377,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,395.60 : 984,031.75 = 251,878.08 : x
  2. Step 2: Convert to fraction form
    656,395.60/984,031.75 = 251,878.08/x
  3. Step 3: Cross multiply
    656,395.60x = 984,031.75 × 251,878.08
  4. Step 4: Simplify right side
    656,395.60x = 247,856,027,849.04
  5. Step 5: Solve for x
    x = 247,856,027,849.04/656,395.60
  6. Step 6: Final answer
    x = 377,601.60

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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.