Home / 728,718.24-1,085,833.26-649,221.60

Finding the Fourth Proportional to 728,718.24, 1,085,833.26 and 649,221.60

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Solution

The fourth proportional to 728,718.24, 1,085,833.26 and 649,221.60 is: 967,378.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,718.24 : 1,085,833.26 = 649,221.60 : x
  2. Step 2: Convert to fraction form
    728,718.24/1,085,833.26 = 649,221.60/x
  3. Step 3: Cross multiply
    728,718.24x = 1,085,833.26 × 649,221.60
  4. Step 4: Simplify right side
    728,718.24x = 704,946,406,390.42
  5. Step 5: Solve for x
    x = 704,946,406,390.42/728,718.24
  6. Step 6: Final answer
    x = 967,378.57

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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.