Home / 1,677,572.40-2,514,260.16-1,321,178.88

Finding the Fourth Proportional to 1,677,572.40, 2,514,260.16 and 1,321,178.88

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Solution

The fourth proportional to 1,677,572.40, 2,514,260.16 and 1,321,178.88 is: 1,980,115.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677,572.40 : 2,514,260.16 = 1,321,178.88 : x
  2. Step 2: Convert to fraction form
    1,677,572.40/2,514,260.16 = 1,321,178.88/x
  3. Step 3: Cross multiply
    1,677,572.40x = 2,514,260.16 × 1,321,178.88
  4. Step 4: Simplify right side
    1,677,572.40x = 3,321,787,422,217.42
  5. Step 5: Solve for x
    x = 3,321,787,422,217.42/1,677,572.40
  6. Step 6: Final answer
    x = 1,980,115.69

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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.