Home / 440,264.48-660,618.30-328,169.79

Finding the Fourth Proportional to 440,264.48, 660,618.30 and 328,169.79

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Solution

The fourth proportional to 440,264.48, 660,618.30 and 328,169.79 is: 492,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,264.48 : 660,618.30 = 328,169.79 : x
  2. Step 2: Convert to fraction form
    440,264.48/660,618.30 = 328,169.79/x
  3. Step 3: Cross multiply
    440,264.48x = 660,618.30 × 328,169.79
  4. Step 4: Simplify right side
    440,264.48x = 216,794,968,781.16
  5. Step 5: Solve for x
    x = 216,794,968,781.16/440,264.48
  6. Step 6: Final answer
    x = 492,419.85

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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.