Home / 1,207,832.40-1,811,977.20-398,263.32

Finding the Fourth Proportional to 1,207,832.40, 1,811,977.20 and 398,263.32

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Solution

The fourth proportional to 1,207,832.40, 1,811,977.20 and 398,263.32 is: 597,470.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,832.40 : 1,811,977.20 = 398,263.32 : x
  2. Step 2: Convert to fraction form
    1,207,832.40/1,811,977.20 = 398,263.32/x
  3. Step 3: Cross multiply
    1,207,832.40x = 1,811,977.20 × 398,263.32
  4. Step 4: Simplify right side
    1,207,832.40x = 721,644,055,436.30
  5. Step 5: Solve for x
    x = 721,644,055,436.30/1,207,832.40
  6. Step 6: Final answer
    x = 597,470.36

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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.