Home / 674,662.80-1,011,346.20-390,061.20

Finding the Fourth Proportional to 674,662.80, 1,011,346.20 and 390,061.20

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Solution

The fourth proportional to 674,662.80, 1,011,346.20 and 390,061.20 is: 584,717.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,662.80 : 1,011,346.20 = 390,061.20 : x
  2. Step 2: Convert to fraction form
    674,662.80/1,011,346.20 = 390,061.20/x
  3. Step 3: Cross multiply
    674,662.80x = 1,011,346.20 × 390,061.20
  4. Step 4: Simplify right side
    674,662.80x = 394,486,912,387.44
  5. Step 5: Solve for x
    x = 394,486,912,387.44/674,662.80
  6. Step 6: Final answer
    x = 584,717.15

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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.