Home / 1,381,479.12-2,073,399.60-540,621.36

Finding the Fourth Proportional to 1,381,479.12, 2,073,399.60 and 540,621.36

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Solution

The fourth proportional to 1,381,479.12, 2,073,399.60 and 540,621.36 is: 811,394.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,479.12 : 2,073,399.60 = 540,621.36 : x
  2. Step 2: Convert to fraction form
    1,381,479.12/2,073,399.60 = 540,621.36/x
  3. Step 3: Cross multiply
    1,381,479.12x = 2,073,399.60 × 540,621.36
  4. Step 4: Simplify right side
    1,381,479.12x = 1,120,924,111,575.46
  5. Step 5: Solve for x
    x = 1,120,924,111,575.46/1,381,479.12
  6. Step 6: Final answer
    x = 811,394.18

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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.