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Finding the Fourth Proportional to 490,061.92, 734,649.04 and 340,372.88

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Solution

The fourth proportional to 490,061.92, 734,649.04 and 340,372.88 is: 510,251.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,061.92 : 734,649.04 = 340,372.88 : x
  2. Step 2: Convert to fraction form
    490,061.92/734,649.04 = 340,372.88/x
  3. Step 3: Cross multiply
    490,061.92x = 734,649.04 × 340,372.88
  4. Step 4: Simplify right side
    490,061.92x = 250,054,609,534.04
  5. Step 5: Solve for x
    x = 250,054,609,534.04/490,061.92
  6. Step 6: Final answer
    x = 510,251.05

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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.