Home / 461,119.32-691,785.90-180,639

Finding the Fourth Proportional to 461,119.32, 691,785.90 and 180,639

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Solution

The fourth proportional to 461,119.32, 691,785.90 and 180,639 is: 271,000.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,119.32 : 691,785.90 = 180,639 : x
  2. Step 2: Convert to fraction form
    461,119.32/691,785.90 = 180,639/x
  3. Step 3: Cross multiply
    461,119.32x = 691,785.90 × 180,639
  4. Step 4: Simplify right side
    461,119.32x = 124,963,513,190.10
  5. Step 5: Solve for x
    x = 124,963,513,190.10/461,119.32
  6. Step 6: Final answer
    x = 271,000.38

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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.