Home / 426,034.89-639,139.82-173,314.74

Finding the Fourth Proportional to 426,034.89, 639,139.82 and 173,314.74

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Solution

The fourth proportional to 426,034.89, 639,139.82 and 173,314.74 is: 260,007.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,034.89 : 639,139.82 = 173,314.74 : x
  2. Step 2: Convert to fraction form
    426,034.89/639,139.82 = 173,314.74/x
  3. Step 3: Cross multiply
    426,034.89x = 639,139.82 × 173,314.74
  4. Step 4: Simplify right side
    426,034.89x = 110,772,349,661.99
  5. Step 5: Solve for x
    x = 110,772,349,661.99/426,034.89
  6. Step 6: Final answer
    x = 260,007.69

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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.