Home / 1,178,340.38-1,626,179.39-887,438.87

Finding the Fourth Proportional to 1,178,340.38, 1,626,179.39 and 887,438.87

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Solution

The fourth proportional to 1,178,340.38, 1,626,179.39 and 887,438.87 is: 1,224,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,340.38 : 1,626,179.39 = 887,438.87 : x
  2. Step 2: Convert to fraction form
    1,178,340.38/1,626,179.39 = 887,438.87/x
  3. Step 3: Cross multiply
    1,178,340.38x = 1,626,179.39 × 887,438.87
  4. Step 4: Simplify right side
    1,178,340.38x = 1,443,134,787,710.80
  5. Step 5: Solve for x
    x = 1,443,134,787,710.80/1,178,340.38
  6. Step 6: Final answer
    x = 1,224,718.10

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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.