Home / 766,055.64-1,149,161.22-293,138.76

Finding the Fourth Proportional to 766,055.64, 1,149,161.22 and 293,138.76

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Solution

The fourth proportional to 766,055.64, 1,149,161.22 and 293,138.76 is: 439,737.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,055.64 : 1,149,161.22 = 293,138.76 : x
  2. Step 2: Convert to fraction form
    766,055.64/1,149,161.22 = 293,138.76/x
  3. Step 3: Cross multiply
    766,055.64x = 1,149,161.22 × 293,138.76
  4. Step 4: Simplify right side
    766,055.64x = 336,863,695,070.89
  5. Step 5: Solve for x
    x = 336,863,695,070.89/766,055.64
  6. Step 6: Final answer
    x = 439,737.90

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1.5x scale

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.