Home / 1,288,016.60-1,932,031.55-755,163.95

Finding the Fourth Proportional to 1,288,016.60, 1,932,031.55 and 755,163.95

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Solution

The fourth proportional to 1,288,016.60, 1,932,031.55 and 755,163.95 is: 1,132,749.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,016.60 : 1,932,031.55 = 755,163.95 : x
  2. Step 2: Convert to fraction form
    1,288,016.60/1,932,031.55 = 755,163.95/x
  3. Step 3: Cross multiply
    1,288,016.60x = 1,932,031.55 × 755,163.95
  4. Step 4: Simplify right side
    1,288,016.60x = 1,459,000,569,050.37
  5. Step 5: Solve for x
    x = 1,459,000,569,050.37/1,288,016.60
  6. Step 6: Final answer
    x = 1,132,749.82

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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.