Home / 481,531.38-721,669.32-268,290.67

Finding the Fourth Proportional to 481,531.38, 721,669.32 and 268,290.67

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Solution

The fourth proportional to 481,531.38, 721,669.32 and 268,290.67 is: 402,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,531.38 : 721,669.32 = 268,290.67 : x
  2. Step 2: Convert to fraction form
    481,531.38/721,669.32 = 268,290.67/x
  3. Step 3: Cross multiply
    481,531.38x = 721,669.32 × 268,290.67
  4. Step 4: Simplify right side
    481,531.38x = 193,617,145,381.24
  5. Step 5: Solve for x
    x = 193,617,145,381.24/481,531.38
  6. Step 6: Final answer
    x = 402,086.25

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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.