Home / 1,279,812.75-1,765,990.51-706,818.75

Finding the Fourth Proportional to 1,279,812.75, 1,765,990.51 and 706,818.75

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Solution

The fourth proportional to 1,279,812.75, 1,765,990.51 and 706,818.75 is: 975,326.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,812.75 : 1,765,990.51 = 706,818.75 : x
  2. Step 2: Convert to fraction form
    1,279,812.75/1,765,990.51 = 706,818.75/x
  3. Step 3: Cross multiply
    1,279,812.75x = 1,765,990.51 × 706,818.75
  4. Step 4: Simplify right side
    1,279,812.75x = 1,248,235,204,790.06
  5. Step 5: Solve for x
    x = 1,248,235,204,790.06/1,279,812.75
  6. Step 6: Final answer
    x = 975,326.43

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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.