Home / 1,488,143.40-2,053,627.70-809,079.90

Finding the Fourth Proportional to 1,488,143.40, 2,053,627.70 and 809,079.90

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Solution

The fourth proportional to 1,488,143.40, 2,053,627.70 and 809,079.90 is: 1,116,524.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,143.40 : 2,053,627.70 = 809,079.90 : x
  2. Step 2: Convert to fraction form
    1,488,143.40/2,053,627.70 = 809,079.90/x
  3. Step 3: Cross multiply
    1,488,143.40x = 2,053,627.70 × 809,079.90
  4. Step 4: Simplify right side
    1,488,143.40x = 1,661,548,890,107.83
  5. Step 5: Solve for x
    x = 1,661,548,890,107.83/1,488,143.40
  6. Step 6: Final answer
    x = 1,116,524.72

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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.