Home / 778,218.67-1,167,363.78-238,436.29

Finding the Fourth Proportional to 778,218.67, 1,167,363.78 and 238,436.29

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Solution

The fourth proportional to 778,218.67, 1,167,363.78 and 238,436.29 is: 357,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,218.67 : 1,167,363.78 = 238,436.29 : x
  2. Step 2: Convert to fraction form
    778,218.67/1,167,363.78 = 238,436.29/x
  3. Step 3: Cross multiply
    778,218.67x = 1,167,363.78 × 238,436.29
  4. Step 4: Simplify right side
    778,218.67x = 278,341,888,783.58
  5. Step 5: Solve for x
    x = 278,341,888,783.58/778,218.67
  6. Step 6: Final answer
    x = 357,665.40

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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.