Home / 1,280,824.12-1,767,479.21-791,012.66

Finding the Fourth Proportional to 1,280,824.12, 1,767,479.21 and 791,012.66

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Solution

The fourth proportional to 1,280,824.12, 1,767,479.21 and 791,012.66 is: 1,091,561.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,824.12 : 1,767,479.21 = 791,012.66 : x
  2. Step 2: Convert to fraction form
    1,280,824.12/1,767,479.21 = 791,012.66/x
  3. Step 3: Cross multiply
    1,280,824.12x = 1,767,479.21 × 791,012.66
  4. Step 4: Simplify right side
    1,280,824.12x = 1,398,098,434,259.02
  5. Step 5: Solve for x
    x = 1,398,098,434,259.02/1,280,824.12
  6. Step 6: Final answer
    x = 1,091,561.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.