Home / 805,407.20-1,208,110.80-331,848.80

Finding the Fourth Proportional to 805,407.20, 1,208,110.80 and 331,848.80

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Solution

The fourth proportional to 805,407.20, 1,208,110.80 and 331,848.80 is: 497,773.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,407.20 : 1,208,110.80 = 331,848.80 : x
  2. Step 2: Convert to fraction form
    805,407.20/1,208,110.80 = 331,848.80/x
  3. Step 3: Cross multiply
    805,407.20x = 1,208,110.80 × 331,848.80
  4. Step 4: Simplify right side
    805,407.20x = 400,910,119,247.04
  5. Step 5: Solve for x
    x = 400,910,119,247.04/805,407.20
  6. Step 6: Final answer
    x = 497,773.20

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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.