Home / 426,955.15-639,799.40-173,926.54

Finding the Fourth Proportional to 426,955.15, 639,799.40 and 173,926.54

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Solution

The fourth proportional to 426,955.15, 639,799.40 and 173,926.54 is: 260,631.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,955.15 : 639,799.40 = 173,926.54 : x
  2. Step 2: Convert to fraction form
    426,955.15/639,799.40 = 173,926.54/x
  3. Step 3: Cross multiply
    426,955.15x = 639,799.40 × 173,926.54
  4. Step 4: Simplify right side
    426,955.15x = 111,278,095,936.08
  5. Step 5: Solve for x
    x = 111,278,095,936.08/426,955.15
  6. Step 6: Final answer
    x = 260,631.82

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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.