Home / 1,146,964.32-1,721,138.40-399,535.20

Finding the Fourth Proportional to 1,146,964.32, 1,721,138.40 and 399,535.20

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Solution

The fourth proportional to 1,146,964.32, 1,721,138.40 and 399,535.20 is: 599,543.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,964.32 : 1,721,138.40 = 399,535.20 : x
  2. Step 2: Convert to fraction form
    1,146,964.32/1,721,138.40 = 399,535.20/x
  3. Step 3: Cross multiply
    1,146,964.32x = 1,721,138.40 × 399,535.20
  4. Step 4: Simplify right side
    1,146,964.32x = 687,655,374,871.68
  5. Step 5: Solve for x
    x = 687,655,374,871.68/1,146,964.32
  6. Step 6: Final answer
    x = 599,543.82

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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.