Home / 768,187.38-1,151,630.43-318,627.66

Finding the Fourth Proportional to 768,187.38, 1,151,630.43 and 318,627.66

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Solution

The fourth proportional to 768,187.38, 1,151,630.43 and 318,627.66 is: 477,671.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,187.38 : 1,151,630.43 = 318,627.66 : x
  2. Step 2: Convert to fraction form
    768,187.38/1,151,630.43 = 318,627.66/x
  3. Step 3: Cross multiply
    768,187.38x = 1,151,630.43 × 318,627.66
  4. Step 4: Simplify right side
    768,187.38x = 366,941,309,095.69
  5. Step 5: Solve for x
    x = 366,941,309,095.69/768,187.38
  6. Step 6: Final answer
    x = 477,671.62

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1.5x scale

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.