Home / 752,160.64-1,038,008.70-412,638.88

Finding the Fourth Proportional to 752,160.64, 1,038,008.70 and 412,638.88

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Solution

The fourth proportional to 752,160.64, 1,038,008.70 and 412,638.88 is: 569,456.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,160.64 : 1,038,008.70 = 412,638.88 : x
  2. Step 2: Convert to fraction form
    752,160.64/1,038,008.70 = 412,638.88/x
  3. Step 3: Cross multiply
    752,160.64x = 1,038,008.70 × 412,638.88
  4. Step 4: Simplify right side
    752,160.64x = 428,322,747,398.26
  5. Step 5: Solve for x
    x = 428,322,747,398.26/752,160.64
  6. Step 6: Final answer
    x = 569,456.48

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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.