Home / 1,231,972.13-1,700,103.63-688,115.66

Finding the Fourth Proportional to 1,231,972.13, 1,700,103.63 and 688,115.66

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Solution

The fourth proportional to 1,231,972.13, 1,700,103.63 and 688,115.66 is: 949,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,972.13 : 1,700,103.63 = 688,115.66 : x
  2. Step 2: Convert to fraction form
    1,231,972.13/1,700,103.63 = 688,115.66/x
  3. Step 3: Cross multiply
    1,231,972.13x = 1,700,103.63 × 688,115.66
  4. Step 4: Simplify right side
    1,231,972.13x = 1,169,867,925,505.76
  5. Step 5: Solve for x
    x = 1,169,867,925,505.76/1,231,972.13
  6. Step 6: Final answer
    x = 949,589.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.