Home / 1,262,120.88-1,741,863.93-778,673.61

Finding the Fourth Proportional to 1,262,120.88, 1,741,863.93 and 778,673.61

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Solution

The fourth proportional to 1,262,120.88, 1,741,863.93 and 778,673.61 is: 1,074,654.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,120.88 : 1,741,863.93 = 778,673.61 : x
  2. Step 2: Convert to fraction form
    1,262,120.88/1,741,863.93 = 778,673.61/x
  3. Step 3: Cross multiply
    1,262,120.88x = 1,741,863.93 × 778,673.61
  4. Step 4: Simplify right side
    1,262,120.88x = 1,356,343,474,501.89
  5. Step 5: Solve for x
    x = 1,356,343,474,501.89/1,262,120.88
  6. Step 6: Final answer
    x = 1,074,654.18

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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.