Home / 904,209.40-1,356,540.90-398,866.60

Finding the Fourth Proportional to 904,209.40, 1,356,540.90 and 398,866.60

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Solution

The fourth proportional to 904,209.40, 1,356,540.90 and 398,866.60 is: 598,399.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,209.40 : 1,356,540.90 = 398,866.60 : x
  2. Step 2: Convert to fraction form
    904,209.40/1,356,540.90 = 398,866.60/x
  3. Step 3: Cross multiply
    904,209.40x = 1,356,540.90 × 398,866.60
  4. Step 4: Simplify right side
    904,209.40x = 541,078,856,543.94
  5. Step 5: Solve for x
    x = 541,078,856,543.94/904,209.40
  6. Step 6: Final answer
    x = 598,399.95

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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.