Home / 347,747.10-521,620.65-324,419.10

Finding the Fourth Proportional to 347,747.10, 521,620.65 and 324,419.10

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Solution

The fourth proportional to 347,747.10, 521,620.65 and 324,419.10 is: 486,628.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,747.10 : 521,620.65 = 324,419.10 : x
  2. Step 2: Convert to fraction form
    347,747.10/521,620.65 = 324,419.10/x
  3. Step 3: Cross multiply
    347,747.10x = 521,620.65 × 324,419.10
  4. Step 4: Simplify right side
    347,747.10x = 169,223,701,814.42
  5. Step 5: Solve for x
    x = 169,223,701,814.42/347,747.10
  6. Step 6: Final answer
    x = 486,628.65

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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.