Home / 878,049.92-1,211,708.48-475,638.40

Finding the Fourth Proportional to 878,049.92, 1,211,708.48 and 475,638.40

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Solution

The fourth proportional to 878,049.92, 1,211,708.48 and 475,638.40 is: 656,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,049.92 : 1,211,708.48 = 475,638.40 : x
  2. Step 2: Convert to fraction form
    878,049.92/1,211,708.48 = 475,638.40/x
  3. Step 3: Cross multiply
    878,049.92x = 1,211,708.48 × 475,638.40
  4. Step 4: Simplify right side
    878,049.92x = 576,335,082,693.63
  5. Step 5: Solve for x
    x = 576,335,082,693.63/878,049.92
  6. Step 6: Final answer
    x = 656,380.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.