Home / 1,215,971.52-1,824,326.30-647,255.85

Finding the Fourth Proportional to 1,215,971.52, 1,824,326.30 and 647,255.85

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Solution

The fourth proportional to 1,215,971.52, 1,824,326.30 and 647,255.85 is: 971,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,971.52 : 1,824,326.30 = 647,255.85 : x
  2. Step 2: Convert to fraction form
    1,215,971.52/1,824,326.30 = 647,255.85/x
  3. Step 3: Cross multiply
    1,215,971.52x = 1,824,326.30 × 647,255.85
  4. Step 4: Simplify right side
    1,215,971.52x = 1,180,805,869,983.86
  5. Step 5: Solve for x
    x = 1,180,805,869,983.86/1,215,971.52
  6. Step 6: Final answer
    x = 971,080.20

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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.