Home / 842,722.32-1,264,209.66-310,202.76

Finding the Fourth Proportional to 842,722.32, 1,264,209.66 and 310,202.76

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Solution

The fourth proportional to 842,722.32, 1,264,209.66 and 310,202.76 is: 465,350.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,722.32 : 1,264,209.66 = 310,202.76 : x
  2. Step 2: Convert to fraction form
    842,722.32/1,264,209.66 = 310,202.76/x
  3. Step 3: Cross multiply
    842,722.32x = 1,264,209.66 × 310,202.76
  4. Step 4: Simplify right side
    842,722.32x = 392,161,325,750.66
  5. Step 5: Solve for x
    x = 392,161,325,750.66/842,722.32
  6. Step 6: Final answer
    x = 465,350.59

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1.5x scale

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.