Home / 443,127.60-664,808.04-127,609.92

Finding the Fourth Proportional to 443,127.60, 664,808.04 and 127,609.92

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Solution

The fourth proportional to 443,127.60, 664,808.04 and 127,609.92 is: 191,448.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,127.60 : 664,808.04 = 127,609.92 : x
  2. Step 2: Convert to fraction form
    443,127.60/664,808.04 = 127,609.92/x
  3. Step 3: Cross multiply
    443,127.60x = 664,808.04 × 127,609.92
  4. Step 4: Simplify right side
    443,127.60x = 84,836,100,799.76
  5. Step 5: Solve for x
    x = 84,836,100,799.76/443,127.60
  6. Step 6: Final answer
    x = 191,448.47

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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.