Home / 499,730.27-689,625.19-270,287.32

Finding the Fourth Proportional to 499,730.27, 689,625.19 and 270,287.32

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Solution

The fourth proportional to 499,730.27, 689,625.19 and 270,287.32 is: 372,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,730.27 : 689,625.19 = 270,287.32 : x
  2. Step 2: Convert to fraction form
    499,730.27/689,625.19 = 270,287.32/x
  3. Step 3: Cross multiply
    499,730.27x = 689,625.19 × 270,287.32
  4. Step 4: Simplify right side
    499,730.27x = 186,396,944,409.59
  5. Step 5: Solve for x
    x = 186,396,944,409.59/499,730.27
  6. Step 6: Final answer
    x = 372,995.10

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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.