Home / 902,979.92-1,246,064.66-515,719.20

Finding the Fourth Proportional to 902,979.92, 1,246,064.66 and 515,719.20

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Solution

The fourth proportional to 902,979.92, 1,246,064.66 and 515,719.20 is: 711,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,979.92 : 1,246,064.66 = 515,719.20 : x
  2. Step 2: Convert to fraction form
    902,979.92/1,246,064.66 = 515,719.20/x
  3. Step 3: Cross multiply
    902,979.92x = 1,246,064.66 × 515,719.20
  4. Step 4: Simplify right side
    902,979.92x = 642,619,476,532.49
  5. Step 5: Solve for x
    x = 642,619,476,532.49/902,979.92
  6. Step 6: Final answer
    x = 711,665.30

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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.