Home / 1,278,442.12-1,917,164.76-479,288.02

Finding the Fourth Proportional to 1,278,442.12, 1,917,164.76 and 479,288.02

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Solution

The fourth proportional to 1,278,442.12, 1,917,164.76 and 479,288.02 is: 718,745.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,442.12 : 1,917,164.76 = 479,288.02 : x
  2. Step 2: Convert to fraction form
    1,278,442.12/1,917,164.76 = 479,288.02/x
  3. Step 3: Cross multiply
    1,278,442.12x = 1,917,164.76 × 479,288.02
  4. Step 4: Simplify right side
    1,278,442.12x = 918,874,101,834.18
  5. Step 5: Solve for x
    x = 918,874,101,834.18/1,278,442.12
  6. Step 6: Final answer
    x = 718,745.17

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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.