Home / 442,972.40-664,435.38-127,416.92

Finding the Fourth Proportional to 442,972.40, 664,435.38 and 127,416.92

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Solution

The fourth proportional to 442,972.40, 664,435.38 and 127,416.92 is: 191,118.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,972.40 : 664,435.38 = 127,416.92 : x
  2. Step 2: Convert to fraction form
    442,972.40/664,435.38 = 127,416.92/x
  3. Step 3: Cross multiply
    442,972.40x = 664,435.38 × 127,416.92
  4. Step 4: Simplify right side
    442,972.40x = 84,660,309,658.63
  5. Step 5: Solve for x
    x = 84,660,309,658.63/442,972.40
  6. Step 6: Final answer
    x = 191,118.70

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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.