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Finding the Fourth Proportional to 490,685.68, 736,210.77 and 340,847.02

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Solution

The fourth proportional to 490,685.68, 736,210.77 and 340,847.02 is: 511,397.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,685.68 : 736,210.77 = 340,847.02 : x
  2. Step 2: Convert to fraction form
    490,685.68/736,210.77 = 340,847.02/x
  3. Step 3: Cross multiply
    490,685.68x = 736,210.77 × 340,847.02
  4. Step 4: Simplify right side
    490,685.68x = 250,935,247,046.41
  5. Step 5: Solve for x
    x = 250,935,247,046.41/490,685.68
  6. Step 6: Final answer
    x = 511,397.13

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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.