Home / 1,278,435.12-1,917,154.26-479,281.04

Finding the Fourth Proportional to 1,278,435.12, 1,917,154.26 and 479,281.04

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Solution

The fourth proportional to 1,278,435.12, 1,917,154.26 and 479,281.04 is: 718,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,435.12 : 1,917,154.26 = 479,281.04 : x
  2. Step 2: Convert to fraction form
    1,278,435.12/1,917,154.26 = 479,281.04/x
  3. Step 3: Cross multiply
    1,278,435.12x = 1,917,154.26 × 479,281.04
  4. Step 4: Simplify right side
    1,278,435.12x = 918,855,687,573.23
  5. Step 5: Solve for x
    x = 918,855,687,573.23/1,278,435.12
  6. Step 6: Final answer
    x = 718,734.70

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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.