Home / 1,288,018.20-1,932,033.96-755,165.55

Finding the Fourth Proportional to 1,288,018.20, 1,932,033.96 and 755,165.55

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Solution

The fourth proportional to 1,288,018.20, 1,932,033.96 and 755,165.55 is: 1,132,752.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,018.20 : 1,932,033.96 = 755,165.55 : x
  2. Step 2: Convert to fraction form
    1,288,018.20/1,932,033.96 = 755,165.55/x
  3. Step 3: Cross multiply
    1,288,018.20x = 1,932,033.96 × 755,165.55
  4. Step 4: Simplify right side
    1,288,018.20x = 1,459,005,488,022.08
  5. Step 5: Solve for x
    x = 1,459,005,488,022.08/1,288,018.20
  6. Step 6: Final answer
    x = 1,132,752.23

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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.