Home / 921,231.50-1,381,568.40-322,080.98

Finding the Fourth Proportional to 921,231.50, 1,381,568.40 and 322,080.98

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Solution

The fourth proportional to 921,231.50, 1,381,568.40 and 322,080.98 is: 483,023.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,231.50 : 1,381,568.40 = 322,080.98 : x
  2. Step 2: Convert to fraction form
    921,231.50/1,381,568.40 = 322,080.98/x
  3. Step 3: Cross multiply
    921,231.50x = 1,381,568.40 × 322,080.98
  4. Step 4: Simplify right side
    921,231.50x = 444,976,897,301.19
  5. Step 5: Solve for x
    x = 444,976,897,301.19/921,231.50
  6. Step 6: Final answer
    x = 483,023.97

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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.