Home / 768,200.74-1,151,650.38-318,641.02

Finding the Fourth Proportional to 768,200.74, 1,151,650.38 and 318,641.02

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Solution

The fourth proportional to 768,200.74, 1,151,650.38 and 318,641.02 is: 477,691.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,200.74 : 1,151,650.38 = 318,641.02 : x
  2. Step 2: Convert to fraction form
    768,200.74/1,151,650.38 = 318,641.02/x
  3. Step 3: Cross multiply
    768,200.74x = 1,151,650.38 × 318,641.02
  4. Step 4: Simplify right side
    768,200.74x = 366,963,050,082.37
  5. Step 5: Solve for x
    x = 366,963,050,082.37/768,200.74
  6. Step 6: Final answer
    x = 477,691.61

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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.