Home / 875,351.72-1,207,961.30-488,178.92

Finding the Fourth Proportional to 875,351.72, 1,207,961.30 and 488,178.92

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Solution

The fourth proportional to 875,351.72, 1,207,961.30 and 488,178.92 is: 673,673.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,351.72 : 1,207,961.30 = 488,178.92 : x
  2. Step 2: Convert to fraction form
    875,351.72/1,207,961.30 = 488,178.92/x
  3. Step 3: Cross multiply
    875,351.72x = 1,207,961.30 × 488,178.92
  4. Step 4: Simplify right side
    875,351.72x = 589,701,247,076.15
  5. Step 5: Solve for x
    x = 589,701,247,076.15/875,351.72
  6. Step 6: Final answer
    x = 673,673.49

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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.