Home / 852,627.81-1,278,185.21-312,759.90

Finding the Fourth Proportional to 852,627.81, 1,278,185.21 and 312,759.90

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Solution

The fourth proportional to 852,627.81, 1,278,185.21 and 312,759.90 is: 468,862.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,627.81 : 1,278,185.21 = 312,759.90 : x
  2. Step 2: Convert to fraction form
    852,627.81/1,278,185.21 = 312,759.90/x
  3. Step 3: Cross multiply
    852,627.81x = 1,278,185.21 × 312,759.90
  4. Step 4: Simplify right side
    852,627.81x = 399,765,076,897.28
  5. Step 5: Solve for x
    x = 399,765,076,897.28/852,627.81
  6. Step 6: Final answer
    x = 468,862.35

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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.