Home / 729,531.20-1,094,143.20-308,820.80

Finding the Fourth Proportional to 729,531.20, 1,094,143.20 and 308,820.80

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Solution

The fourth proportional to 729,531.20, 1,094,143.20 and 308,820.80 is: 463,166.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,531.20 : 1,094,143.20 = 308,820.80 : x
  2. Step 2: Convert to fraction form
    729,531.20/1,094,143.20 = 308,820.80/x
  3. Step 3: Cross multiply
    729,531.20x = 1,094,143.20 × 308,820.80
  4. Step 4: Simplify right side
    729,531.20x = 337,894,178,338.56
  5. Step 5: Solve for x
    x = 337,894,178,338.56/729,531.20
  6. Step 6: Final answer
    x = 463,166.18

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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.