Home / 878,446.08-1,315,158.76-822,645.12

Finding the Fourth Proportional to 878,446.08, 1,315,158.76 and 822,645.12

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Solution

The fourth proportional to 878,446.08, 1,315,158.76 and 822,645.12 is: 1,231,616.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,446.08 : 1,315,158.76 = 822,645.12 : x
  2. Step 2: Convert to fraction form
    878,446.08/1,315,158.76 = 822,645.12/x
  3. Step 3: Cross multiply
    878,446.08x = 1,315,158.76 × 822,645.12
  4. Step 4: Simplify right side
    878,446.08x = 1,081,908,935,939.25
  5. Step 5: Solve for x
    x = 1,081,908,935,939.25/878,446.08
  6. Step 6: Final answer
    x = 1,231,616.78

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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.