Home / 486,066.20-729,099.30-409,083.80

Finding the Fourth Proportional to 486,066.20, 729,099.30 and 409,083.80

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Solution

The fourth proportional to 486,066.20, 729,099.30 and 409,083.80 is: 613,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,066.20 : 729,099.30 = 409,083.80 : x
  2. Step 2: Convert to fraction form
    486,066.20/729,099.30 = 409,083.80/x
  3. Step 3: Cross multiply
    486,066.20x = 729,099.30 × 409,083.80
  4. Step 4: Simplify right side
    486,066.20x = 298,262,712,221.34
  5. Step 5: Solve for x
    x = 298,262,712,221.34/486,066.20
  6. Step 6: Final answer
    x = 613,625.70

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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.