Home / 832,231.20-1,248,778.80-388,999.20

Finding the Fourth Proportional to 832,231.20, 1,248,778.80 and 388,999.20

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Solution

The fourth proportional to 832,231.20, 1,248,778.80 and 388,999.20 is: 583,700.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,231.20 : 1,248,778.80 = 388,999.20 : x
  2. Step 2: Convert to fraction form
    832,231.20/1,248,778.80 = 388,999.20/x
  3. Step 3: Cross multiply
    832,231.20x = 1,248,778.80 × 388,999.20
  4. Step 4: Simplify right side
    832,231.20x = 485,773,954,176.96
  5. Step 5: Solve for x
    x = 485,773,954,176.96/832,231.20
  6. Step 6: Final answer
    x = 583,700.72

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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.