Home / 426,196.80-639,295.20-267,566.40

Finding the Fourth Proportional to 426,196.80, 639,295.20 and 267,566.40

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Solution

The fourth proportional to 426,196.80, 639,295.20 and 267,566.40 is: 401,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,196.80 : 639,295.20 = 267,566.40 : x
  2. Step 2: Convert to fraction form
    426,196.80/639,295.20 = 267,566.40/x
  3. Step 3: Cross multiply
    426,196.80x = 639,295.20 × 267,566.40
  4. Step 4: Simplify right side
    426,196.80x = 171,053,915,201.28
  5. Step 5: Solve for x
    x = 171,053,915,201.28/426,196.80
  6. Step 6: Final answer
    x = 401,349.60

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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.