Home / 842,466.72-1,264,821.12-443,387.76

Finding the Fourth Proportional to 842,466.72, 1,264,821.12 and 443,387.76

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Solution

The fourth proportional to 842,466.72, 1,264,821.12 and 443,387.76 is: 665,671.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,466.72 : 1,264,821.12 = 443,387.76 : x
  2. Step 2: Convert to fraction form
    842,466.72/1,264,821.12 = 443,387.76/x
  3. Step 3: Cross multiply
    842,466.72x = 1,264,821.12 × 443,387.76
  4. Step 4: Simplify right side
    842,466.72x = 560,806,203,197.49
  5. Step 5: Solve for x
    x = 560,806,203,197.49/842,466.72
  6. Step 6: Final answer
    x = 665,671.64

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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.