Home / 948,128.40-1,424,719.80-522,003.60

Finding the Fourth Proportional to 948,128.40, 1,424,719.80 and 522,003.60

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Solution

The fourth proportional to 948,128.40, 1,424,719.80 and 522,003.60 is: 784,396.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,128.40 : 1,424,719.80 = 522,003.60 : x
  2. Step 2: Convert to fraction form
    948,128.40/1,424,719.80 = 522,003.60/x
  3. Step 3: Cross multiply
    948,128.40x = 1,424,719.80 × 522,003.60
  4. Step 4: Simplify right side
    948,128.40x = 743,708,864,591.28
  5. Step 5: Solve for x
    x = 743,708,864,591.28/948,128.40
  6. Step 6: Final answer
    x = 784,396.78

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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.