Home / 499,731.27-689,626.57-270,288.32

Finding the Fourth Proportional to 499,731.27, 689,626.57 and 270,288.32

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Solution

The fourth proportional to 499,731.27, 689,626.57 and 270,288.32 is: 372,996.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,731.27 : 689,626.57 = 270,288.32 : x
  2. Step 2: Convert to fraction form
    499,731.27/689,626.57 = 270,288.32/x
  3. Step 3: Cross multiply
    499,731.27x = 689,626.57 × 270,288.32
  4. Step 4: Simplify right side
    499,731.27x = 186,398,007,032.66
  5. Step 5: Solve for x
    x = 186,398,007,032.66/499,731.27
  6. Step 6: Final answer
    x = 372,996.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.