Home / 426,663.28-639,990.53-246,634.15

Finding the Fourth Proportional to 426,663.28, 639,990.53 and 246,634.15

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Solution

The fourth proportional to 426,663.28, 639,990.53 and 246,634.15 is: 369,948.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,663.28 : 639,990.53 = 246,634.15 : x
  2. Step 2: Convert to fraction form
    426,663.28/639,990.53 = 246,634.15/x
  3. Step 3: Cross multiply
    426,663.28x = 639,990.53 × 246,634.15
  4. Step 4: Simplify right side
    426,663.28x = 157,843,519,141.43
  5. Step 5: Solve for x
    x = 157,843,519,141.43/426,663.28
  6. Step 6: Final answer
    x = 369,948.69

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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.