Home / 987,078.64-1,480,387.92-277,175.20

Finding the Fourth Proportional to 987,078.64, 1,480,387.92 and 277,175.20

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Solution

The fourth proportional to 987,078.64, 1,480,387.92 and 277,175.20 is: 415,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,078.64 : 1,480,387.92 = 277,175.20 : x
  2. Step 2: Convert to fraction form
    987,078.64/1,480,387.92 = 277,175.20/x
  3. Step 3: Cross multiply
    987,078.64x = 1,480,387.92 × 277,175.20
  4. Step 4: Simplify right side
    987,078.64x = 410,326,817,803.58
  5. Step 5: Solve for x
    x = 410,326,817,803.58/987,078.64
  6. Step 6: Final answer
    x = 415,698.20

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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.