Home / 1,186,479.12-1,779,705.30-287,930.73

Finding the Fourth Proportional to 1,186,479.12, 1,779,705.30 and 287,930.73

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Solution

The fourth proportional to 1,186,479.12, 1,779,705.30 and 287,930.73 is: 431,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,479.12 : 1,779,705.30 = 287,930.73 : x
  2. Step 2: Convert to fraction form
    1,186,479.12/1,779,705.30 = 287,930.73/x
  3. Step 3: Cross multiply
    1,186,479.12x = 1,779,705.30 × 287,930.73
  4. Step 4: Simplify right side
    1,186,479.12x = 512,431,846,213.87
  5. Step 5: Solve for x
    x = 512,431,846,213.87/1,186,479.12
  6. Step 6: Final answer
    x = 431,892.85

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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.