Home / 563,142.18-844,037.64-393,738.78

Finding the Fourth Proportional to 563,142.18, 844,037.64 and 393,738.78

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Solution

The fourth proportional to 563,142.18, 844,037.64 and 393,738.78 is: 590,135.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,142.18 : 844,037.64 = 393,738.78 : x
  2. Step 2: Convert to fraction form
    563,142.18/844,037.64 = 393,738.78/x
  3. Step 3: Cross multiply
    563,142.18x = 844,037.64 × 393,738.78
  4. Step 4: Simplify right side
    563,142.18x = 332,330,350,647.68
  5. Step 5: Solve for x
    x = 332,330,350,647.68/563,142.18
  6. Step 6: Final answer
    x = 590,135.78

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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.