Home / 535,765.24-739,302.18-320,899.78

Finding the Fourth Proportional to 535,765.24, 739,302.18 and 320,899.78

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Solution

The fourth proportional to 535,765.24, 739,302.18 and 320,899.78 is: 442,809.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,765.24 : 739,302.18 = 320,899.78 : x
  2. Step 2: Convert to fraction form
    535,765.24/739,302.18 = 320,899.78/x
  3. Step 3: Cross multiply
    535,765.24x = 739,302.18 × 320,899.78
  4. Step 4: Simplify right side
    535,765.24x = 237,241,906,915.52
  5. Step 5: Solve for x
    x = 237,241,906,915.52/535,765.24
  6. Step 6: Final answer
    x = 442,809.44

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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.