Home / 1,120,029.27-1,680,040.71-278,581.02

Finding the Fourth Proportional to 1,120,029.27, 1,680,040.71 and 278,581.02

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Solution

The fourth proportional to 1,120,029.27, 1,680,040.71 and 278,581.02 is: 417,870.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,029.27 : 1,680,040.71 = 278,581.02 : x
  2. Step 2: Convert to fraction form
    1,120,029.27/1,680,040.71 = 278,581.02/x
  3. Step 3: Cross multiply
    1,120,029.27x = 1,680,040.71 × 278,581.02
  4. Step 4: Simplify right side
    1,120,029.27x = 468,027,454,633.32
  5. Step 5: Solve for x
    x = 468,027,454,633.32/1,120,029.27
  6. Step 6: Final answer
    x = 417,870.74

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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.