Home / 480,651.12-721,017.59-125,664.57

Finding the Fourth Proportional to 480,651.12, 721,017.59 and 125,664.57

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Solution

The fourth proportional to 480,651.12, 721,017.59 and 125,664.57 is: 188,507.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,651.12 : 721,017.59 = 125,664.57 : x
  2. Step 2: Convert to fraction form
    480,651.12/721,017.59 = 125,664.57/x
  3. Step 3: Cross multiply
    480,651.12x = 721,017.59 × 125,664.57
  4. Step 4: Simplify right side
    480,651.12x = 90,606,364,781.46
  5. Step 5: Solve for x
    x = 90,606,364,781.46/480,651.12
  6. Step 6: Final answer
    x = 188,507.55

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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.