Home / 865,660.20-1,298,629.80-266,621.16

Finding the Fourth Proportional to 865,660.20, 1,298,629.80 and 266,621.16

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Solution

The fourth proportional to 865,660.20, 1,298,629.80 and 266,621.16 is: 399,974.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,660.20 : 1,298,629.80 = 266,621.16 : x
  2. Step 2: Convert to fraction form
    865,660.20/1,298,629.80 = 266,621.16/x
  3. Step 3: Cross multiply
    865,660.20x = 1,298,629.80 × 266,621.16
  4. Step 4: Simplify right side
    865,660.20x = 346,242,183,686.57
  5. Step 5: Solve for x
    x = 346,242,183,686.57/865,660.20
  6. Step 6: Final answer
    x = 399,974.71

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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.