Home / 1,812,400.20-2,715,489.90-863,728.20

Finding the Fourth Proportional to 1,812,400.20, 2,715,489.90 and 863,728.20

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Solution

The fourth proportional to 1,812,400.20, 2,715,489.90 and 863,728.20 is: 1,294,109.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812,400.20 : 2,715,489.90 = 863,728.20 : x
  2. Step 2: Convert to fraction form
    1,812,400.20/2,715,489.90 = 863,728.20/x
  3. Step 3: Cross multiply
    1,812,400.20x = 2,715,489.90 × 863,728.20
  4. Step 4: Simplify right side
    1,812,400.20x = 2,345,445,203,445.18
  5. Step 5: Solve for x
    x = 2,345,445,203,445.18/1,812,400.20
  6. Step 6: Final answer
    x = 1,294,109.99

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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.