Home / 958,694.40-1,438,963.20-485,913.60

Finding the Fourth Proportional to 958,694.40, 1,438,963.20 and 485,913.60

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Solution

The fourth proportional to 958,694.40, 1,438,963.20 and 485,913.60 is: 729,337.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,694.40 : 1,438,963.20 = 485,913.60 : x
  2. Step 2: Convert to fraction form
    958,694.40/1,438,963.20 = 485,913.60/x
  3. Step 3: Cross multiply
    958,694.40x = 1,438,963.20 × 485,913.60
  4. Step 4: Simplify right side
    958,694.40x = 699,211,788,779.52
  5. Step 5: Solve for x
    x = 699,211,788,779.52/958,694.40
  6. Step 6: Final answer
    x = 729,337.51

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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.