Home / 1,247,310.88-1,870,940.40-499,156

Finding the Fourth Proportional to 1,247,310.88, 1,870,940.40 and 499,156

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Solution

The fourth proportional to 1,247,310.88, 1,870,940.40 and 499,156 is: 748,723.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,310.88 : 1,870,940.40 = 499,156 : x
  2. Step 2: Convert to fraction form
    1,247,310.88/1,870,940.40 = 499,156/x
  3. Step 3: Cross multiply
    1,247,310.88x = 1,870,940.40 × 499,156
  4. Step 4: Simplify right side
    1,247,310.88x = 933,891,126,302.40
  5. Step 5: Solve for x
    x = 933,891,126,302.40/1,247,310.88
  6. Step 6: Final answer
    x = 748,723.63

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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.