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Finding the Fourth Proportional to 669,388.71, 1,004,083.13 and 170,752.71

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Solution

The fourth proportional to 669,388.71, 1,004,083.13 and 170,752.71 is: 256,129.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,388.71 : 1,004,083.13 = 170,752.71 : x
  2. Step 2: Convert to fraction form
    669,388.71/1,004,083.13 = 170,752.71/x
  3. Step 3: Cross multiply
    669,388.71x = 1,004,083.13 × 170,752.71
  4. Step 4: Simplify right side
    669,388.71x = 171,449,915,512.78
  5. Step 5: Solve for x
    x = 171,449,915,512.78/669,388.71
  6. Step 6: Final answer
    x = 256,129.08

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1.5x scale

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.