Home / 426,784.68-639,684.54-160,374.87

Finding the Fourth Proportional to 426,784.68, 639,684.54 and 160,374.87

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Solution

The fourth proportional to 426,784.68, 639,684.54 and 160,374.87 is: 240,377.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,784.68 : 639,684.54 = 160,374.87 : x
  2. Step 2: Convert to fraction form
    426,784.68/639,684.54 = 160,374.87/x
  3. Step 3: Cross multiply
    426,784.68x = 639,684.54 × 160,374.87
  4. Step 4: Simplify right side
    426,784.68x = 102,589,324,943.51
  5. Step 5: Solve for x
    x = 102,589,324,943.51/426,784.68
  6. Step 6: Final answer
    x = 240,377.24

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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.