Home / 814,256.98-1,220,139.95-435,231.65

Finding the Fourth Proportional to 814,256.98, 1,220,139.95 and 435,231.65

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Solution

The fourth proportional to 814,256.98, 1,220,139.95 and 435,231.65 is: 652,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,256.98 : 1,220,139.95 = 435,231.65 : x
  2. Step 2: Convert to fraction form
    814,256.98/1,220,139.95 = 435,231.65/x
  3. Step 3: Cross multiply
    814,256.98x = 1,220,139.95 × 435,231.65
  4. Step 4: Simplify right side
    814,256.98x = 531,043,524,543.61
  5. Step 5: Solve for x
    x = 531,043,524,543.61/814,256.98
  6. Step 6: Final answer
    x = 652,181.73

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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.