Home / 431,037.10-646,555.65-115,525.90

Finding the Fourth Proportional to 431,037.10, 646,555.65 and 115,525.90

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Solution

The fourth proportional to 431,037.10, 646,555.65 and 115,525.90 is: 173,288.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,037.10 : 646,555.65 = 115,525.90 : x
  2. Step 2: Convert to fraction form
    431,037.10/646,555.65 = 115,525.90/x
  3. Step 3: Cross multiply
    431,037.10x = 646,555.65 × 115,525.90
  4. Step 4: Simplify right side
    431,037.10x = 74,693,923,366.34
  5. Step 5: Solve for x
    x = 74,693,923,366.34/431,037.10
  6. Step 6: Final answer
    x = 173,288.85

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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.