Home / 485,445.30-727,779.15-204,731.70

Finding the Fourth Proportional to 485,445.30, 727,779.15 and 204,731.70

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Solution

The fourth proportional to 485,445.30, 727,779.15 and 204,731.70 is: 306,933.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,445.30 : 727,779.15 = 204,731.70 : x
  2. Step 2: Convert to fraction form
    485,445.30/727,779.15 = 204,731.70/x
  3. Step 3: Cross multiply
    485,445.30x = 727,779.15 × 204,731.70
  4. Step 4: Simplify right side
    485,445.30x = 148,999,462,604.06
  5. Step 5: Solve for x
    x = 148,999,462,604.06/485,445.30
  6. Step 6: Final answer
    x = 306,933.58

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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.