Home / 882,726.72-1,218,286.96-515,324.36

Finding the Fourth Proportional to 882,726.72, 1,218,286.96 and 515,324.36

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Solution

The fourth proportional to 882,726.72, 1,218,286.96 and 515,324.36 is: 711,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,726.72 : 1,218,286.96 = 515,324.36 : x
  2. Step 2: Convert to fraction form
    882,726.72/1,218,286.96 = 515,324.36/x
  3. Step 3: Cross multiply
    882,726.72x = 1,218,286.96 × 515,324.36
  4. Step 4: Simplify right side
    882,726.72x = 627,812,940,578.60
  5. Step 5: Solve for x
    x = 627,812,940,578.60/882,726.72
  6. Step 6: Final answer
    x = 711,220.05

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Double scale
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1.5x scale

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.