Home / 1,400,785.20-2,103,146.10-869,344.20

Finding the Fourth Proportional to 1,400,785.20, 2,103,146.10 and 869,344.20

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Solution

The fourth proportional to 1,400,785.20, 2,103,146.10 and 869,344.20 is: 1,305,237.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,785.20 : 2,103,146.10 = 869,344.20 : x
  2. Step 2: Convert to fraction form
    1,400,785.20/2,103,146.10 = 869,344.20/x
  3. Step 3: Cross multiply
    1,400,785.20x = 2,103,146.10 × 869,344.20
  4. Step 4: Simplify right side
    1,400,785.20x = 1,828,357,863,787.62
  5. Step 5: Solve for x
    x = 1,828,357,863,787.62/1,400,785.20
  6. Step 6: Final answer
    x = 1,305,237.85

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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.