Home / 871,210.92-1,306,865.52-310,245.48

Finding the Fourth Proportional to 871,210.92, 1,306,865.52 and 310,245.48

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Solution

The fourth proportional to 871,210.92, 1,306,865.52 and 310,245.48 is: 465,385.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,210.92 : 1,306,865.52 = 310,245.48 : x
  2. Step 2: Convert to fraction form
    871,210.92/1,306,865.52 = 310,245.48/x
  3. Step 3: Cross multiply
    871,210.92x = 1,306,865.52 × 310,245.48
  4. Step 4: Simplify right side
    871,210.92x = 405,449,120,547.85
  5. Step 5: Solve for x
    x = 405,449,120,547.85/871,210.92
  6. Step 6: Final answer
    x = 465,385.72

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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.