Home / 726,812.20-1,090,218.30-327,903.40

Finding the Fourth Proportional to 726,812.20, 1,090,218.30 and 327,903.40

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Solution

The fourth proportional to 726,812.20, 1,090,218.30 and 327,903.40 is: 491,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,812.20 : 1,090,218.30 = 327,903.40 : x
  2. Step 2: Convert to fraction form
    726,812.20/1,090,218.30 = 327,903.40/x
  3. Step 3: Cross multiply
    726,812.20x = 1,090,218.30 × 327,903.40
  4. Step 4: Simplify right side
    726,812.20x = 357,486,287,312.22
  5. Step 5: Solve for x
    x = 357,486,287,312.22/726,812.20
  6. Step 6: Final answer
    x = 491,855.10

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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.