Home / 1,086,738.30-1,630,034.55-288,002.70

Finding the Fourth Proportional to 1,086,738.30, 1,630,034.55 and 288,002.70

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Solution

The fourth proportional to 1,086,738.30, 1,630,034.55 and 288,002.70 is: 431,984.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,738.30 : 1,630,034.55 = 288,002.70 : x
  2. Step 2: Convert to fraction form
    1,086,738.30/1,630,034.55 = 288,002.70/x
  3. Step 3: Cross multiply
    1,086,738.30x = 1,630,034.55 × 288,002.70
  4. Step 4: Simplify right side
    1,086,738.30x = 469,454,351,493.29
  5. Step 5: Solve for x
    x = 469,454,351,493.29/1,086,738.30
  6. Step 6: Final answer
    x = 431,984.73

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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.