Home / 655,980.20-983,125.46-318,367.47

Finding the Fourth Proportional to 655,980.20, 983,125.46 and 318,367.47

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Solution

The fourth proportional to 655,980.20, 983,125.46 and 318,367.47 is: 477,141.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,980.20 : 983,125.46 = 318,367.47 : x
  2. Step 2: Convert to fraction form
    655,980.20/983,125.46 = 318,367.47/x
  3. Step 3: Cross multiply
    655,980.20x = 983,125.46 × 318,367.47
  4. Step 4: Simplify right side
    655,980.20x = 312,995,166,188.71
  5. Step 5: Solve for x
    x = 312,995,166,188.71/655,980.20
  6. Step 6: Final answer
    x = 477,141.18

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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.