Home / 423,037.20-634,555.80-396,793.20

Finding the Fourth Proportional to 423,037.20, 634,555.80 and 396,793.20

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Solution

The fourth proportional to 423,037.20, 634,555.80 and 396,793.20 is: 595,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,037.20 : 634,555.80 = 396,793.20 : x
  2. Step 2: Convert to fraction form
    423,037.20/634,555.80 = 396,793.20/x
  3. Step 3: Cross multiply
    423,037.20x = 634,555.80 × 396,793.20
  4. Step 4: Simplify right side
    423,037.20x = 251,787,426,460.56
  5. Step 5: Solve for x
    x = 251,787,426,460.56/423,037.20
  6. Step 6: Final answer
    x = 595,189.80

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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.