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Finding the Fourth Proportional to 984,800, 1,359,101.76 and 549,279.20

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Solution

The fourth proportional to 984,800, 1,359,101.76 and 549,279.20 is: 758,048.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,800 : 1,359,101.76 = 549,279.20 : x
  2. Step 2: Convert to fraction form
    984,800/1,359,101.76 = 549,279.20/x
  3. Step 3: Cross multiply
    984,800x = 1,359,101.76 × 549,279.20
  4. Step 4: Simplify right side
    984,800x = 746,526,327,451.39
  5. Step 5: Solve for x
    x = 746,526,327,451.39/984,800
  6. Step 6: Final answer
    x = 758,048.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.