Home / 778,026.87-1,167,040.31-245,921.61

Finding the Fourth Proportional to 778,026.87, 1,167,040.31 and 245,921.61

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Solution

The fourth proportional to 778,026.87, 1,167,040.31 and 245,921.61 is: 368,882.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,026.87 : 1,167,040.31 = 245,921.61 : x
  2. Step 2: Convert to fraction form
    778,026.87/1,167,040.31 = 245,921.61/x
  3. Step 3: Cross multiply
    778,026.87x = 1,167,040.31 × 245,921.61
  4. Step 4: Simplify right side
    778,026.87x = 287,000,430,740.49
  5. Step 5: Solve for x
    x = 287,000,430,740.49/778,026.87
  6. Step 6: Final answer
    x = 368,882.42

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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.