Home / 994,041.20-1,491,061.80-639,455.60

Finding the Fourth Proportional to 994,041.20, 1,491,061.80 and 639,455.60

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Solution

The fourth proportional to 994,041.20, 1,491,061.80 and 639,455.60 is: 959,183.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,041.20 : 1,491,061.80 = 639,455.60 : x
  2. Step 2: Convert to fraction form
    994,041.20/1,491,061.80 = 639,455.60/x
  3. Step 3: Cross multiply
    994,041.20x = 1,491,061.80 × 639,455.60
  4. Step 4: Simplify right side
    994,041.20x = 953,467,817,956.08
  5. Step 5: Solve for x
    x = 953,467,817,956.08/994,041.20
  6. Step 6: Final answer
    x = 959,183.40

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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.