Home / 721,602.74-1,082,381.78-342,796.12

Finding the Fourth Proportional to 721,602.74, 1,082,381.78 and 342,796.12

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Solution

The fourth proportional to 721,602.74, 1,082,381.78 and 342,796.12 is: 514,183.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,602.74 : 1,082,381.78 = 342,796.12 : x
  2. Step 2: Convert to fraction form
    721,602.74/1,082,381.78 = 342,796.12/x
  3. Step 3: Cross multiply
    721,602.74x = 1,082,381.78 × 342,796.12
  4. Step 4: Simplify right side
    721,602.74x = 371,036,274,542.69
  5. Step 5: Solve for x
    x = 371,036,274,542.69/721,602.74
  6. Step 6: Final answer
    x = 514,183.57

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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.