Home / 1,215,972.52-1,824,327.80-647,256.85

Finding the Fourth Proportional to 1,215,972.52, 1,824,327.80 and 647,256.85

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Solution

The fourth proportional to 1,215,972.52, 1,824,327.80 and 647,256.85 is: 971,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,972.52 : 1,824,327.80 = 647,256.85 : x
  2. Step 2: Convert to fraction form
    1,215,972.52/1,824,327.80 = 647,256.85/x
  3. Step 3: Cross multiply
    1,215,972.52x = 1,824,327.80 × 647,256.85
  4. Step 4: Simplify right side
    1,215,972.52x = 1,180,808,665,195.43
  5. Step 5: Solve for x
    x = 1,180,808,665,195.43/1,215,972.52
  6. Step 6: Final answer
    x = 971,081.70

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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.