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Finding the Fourth Proportional to 490,600.40, 735,317.40 and 440,445.20

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Solution

The fourth proportional to 490,600.40, 735,317.40 and 440,445.20 is: 660,144.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,600.40 : 735,317.40 = 440,445.20 : x
  2. Step 2: Convert to fraction form
    490,600.40/735,317.40 = 440,445.20/x
  3. Step 3: Cross multiply
    490,600.40x = 735,317.40 × 440,445.20
  4. Step 4: Simplify right side
    490,600.40x = 323,867,019,306.48
  5. Step 5: Solve for x
    x = 323,867,019,306.48/490,600.40
  6. Step 6: Final answer
    x = 660,144.22

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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.