Home / 1,117,311.42-1,676,065.92-318,575.82

Finding the Fourth Proportional to 1,117,311.42, 1,676,065.92 and 318,575.82

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Solution

The fourth proportional to 1,117,311.42, 1,676,065.92 and 318,575.82 is: 477,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,311.42 : 1,676,065.92 = 318,575.82 : x
  2. Step 2: Convert to fraction form
    1,117,311.42/1,676,065.92 = 318,575.82/x
  3. Step 3: Cross multiply
    1,117,311.42x = 1,676,065.92 × 318,575.82
  4. Step 4: Simplify right side
    1,117,311.42x = 533,954,074,838.05
  5. Step 5: Solve for x
    x = 533,954,074,838.05/1,117,311.42
  6. Step 6: Final answer
    x = 477,891.90

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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.