Home / 778,218.40-1,167,363.38-238,436.02

Finding the Fourth Proportional to 778,218.40, 1,167,363.38 and 238,436.02

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Solution

The fourth proportional to 778,218.40, 1,167,363.38 and 238,436.02 is: 357,664.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,218.40 : 1,167,363.38 = 238,436.02 : x
  2. Step 2: Convert to fraction form
    778,218.40/1,167,363.38 = 238,436.02/x
  3. Step 3: Cross multiply
    778,218.40x = 1,167,363.38 × 238,436.02
  4. Step 4: Simplify right side
    778,218.40x = 278,341,478,220.95
  5. Step 5: Solve for x
    x = 278,341,478,220.95/778,218.40
  6. Step 6: Final answer
    x = 357,664.99

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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.