Home / 1,117,426.20-1,676,139.30-1,005,451.80

Finding the Fourth Proportional to 1,117,426.20, 1,676,139.30 and 1,005,451.80

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Solution

The fourth proportional to 1,117,426.20, 1,676,139.30 and 1,005,451.80 is: 1,508,177.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,426.20 : 1,676,139.30 = 1,005,451.80 : x
  2. Step 2: Convert to fraction form
    1,117,426.20/1,676,139.30 = 1,005,451.80/x
  3. Step 3: Cross multiply
    1,117,426.20x = 1,676,139.30 × 1,005,451.80
  4. Step 4: Simplify right side
    1,117,426.20x = 1,685,277,276,235.74
  5. Step 5: Solve for x
    x = 1,685,277,276,235.74/1,117,426.20
  6. Step 6: Final answer
    x = 1,508,177.70

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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.