Home / 561,749.12-775,158.08-320,017.29

Finding the Fourth Proportional to 561,749.12, 775,158.08 and 320,017.29

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Solution

The fourth proportional to 561,749.12, 775,158.08 and 320,017.29 is: 441,592.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,749.12 : 775,158.08 = 320,017.29 : x
  2. Step 2: Convert to fraction form
    561,749.12/775,158.08 = 320,017.29/x
  3. Step 3: Cross multiply
    561,749.12x = 775,158.08 × 320,017.29
  4. Step 4: Simplify right side
    561,749.12x = 248,063,984,207.41
  5. Step 5: Solve for x
    x = 248,063,984,207.41/561,749.12
  6. Step 6: Final answer
    x = 441,592.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.