Home / 728,719.24-1,085,834.75-649,222.60

Finding the Fourth Proportional to 728,719.24, 1,085,834.75 and 649,222.60

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Solution

The fourth proportional to 728,719.24, 1,085,834.75 and 649,222.60 is: 967,380.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,719.24 : 1,085,834.75 = 649,222.60 : x
  2. Step 2: Convert to fraction form
    728,719.24/1,085,834.75 = 649,222.60/x
  3. Step 3: Cross multiply
    728,719.24x = 1,085,834.75 × 649,222.60
  4. Step 4: Simplify right side
    728,719.24x = 704,948,459,565.35
  5. Step 5: Solve for x
    x = 704,948,459,565.35/728,719.24
  6. Step 6: Final answer
    x = 967,380.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.