Home / 878,423.76-1,315,125.45-822,622.86

Finding the Fourth Proportional to 878,423.76, 1,315,125.45 and 822,622.86

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Solution

The fourth proportional to 878,423.76, 1,315,125.45 and 822,622.86 is: 1,231,583.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,423.76 : 1,315,125.45 = 822,622.86 : x
  2. Step 2: Convert to fraction form
    878,423.76/1,315,125.45 = 822,622.86/x
  3. Step 3: Cross multiply
    878,423.76x = 1,315,125.45 × 822,622.86
  4. Step 4: Simplify right side
    878,423.76x = 1,081,852,258,937.79
  5. Step 5: Solve for x
    x = 1,081,852,258,937.79/878,423.76
  6. Step 6: Final answer
    x = 1,231,583.56

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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.