Home / 443,569.20-665,395.71-123,742.32

Finding the Fourth Proportional to 443,569.20, 665,395.71 and 123,742.32

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Solution

The fourth proportional to 443,569.20, 665,395.71 and 123,742.32 is: 185,625.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,569.20 : 665,395.71 = 123,742.32 : x
  2. Step 2: Convert to fraction form
    443,569.20/665,395.71 = 123,742.32/x
  3. Step 3: Cross multiply
    443,569.20x = 665,395.71 × 123,742.32
  4. Step 4: Simplify right side
    443,569.20x = 82,337,608,873.45
  5. Step 5: Solve for x
    x = 82,337,608,873.45/443,569.20
  6. Step 6: Final answer
    x = 185,625.17

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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.