Home / 875,246.40-1,313,161.20-781,178.40

Finding the Fourth Proportional to 875,246.40, 1,313,161.20 and 781,178.40

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Solution

The fourth proportional to 875,246.40, 1,313,161.20 and 781,178.40 is: 1,172,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,246.40 : 1,313,161.20 = 781,178.40 : x
  2. Step 2: Convert to fraction form
    875,246.40/1,313,161.20 = 781,178.40/x
  3. Step 3: Cross multiply
    875,246.40x = 1,313,161.20 × 781,178.40
  4. Step 4: Simplify right side
    875,246.40x = 1,025,813,165,158.08
  5. Step 5: Solve for x
    x = 1,025,813,165,158.08/875,246.40
  6. Step 6: Final answer
    x = 1,172,027.86

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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.