Home / 426,001.36-639,002.04-145,521.04

Finding the Fourth Proportional to 426,001.36, 639,002.04 and 145,521.04

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Solution

The fourth proportional to 426,001.36, 639,002.04 and 145,521.04 is: 218,281.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,001.36 : 639,002.04 = 145,521.04 : x
  2. Step 2: Convert to fraction form
    426,001.36/639,002.04 = 145,521.04/x
  3. Step 3: Cross multiply
    426,001.36x = 639,002.04 × 145,521.04
  4. Step 4: Simplify right side
    426,001.36x = 92,988,241,422.92
  5. Step 5: Solve for x
    x = 92,988,241,422.92/426,001.36
  6. Step 6: Final answer
    x = 218,281.56

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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.