Home / 823,971.20-1,235,956.80-292,092.80

Finding the Fourth Proportional to 823,971.20, 1,235,956.80 and 292,092.80

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Solution

The fourth proportional to 823,971.20, 1,235,956.80 and 292,092.80 is: 438,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,971.20 : 1,235,956.80 = 292,092.80 : x
  2. Step 2: Convert to fraction form
    823,971.20/1,235,956.80 = 292,092.80/x
  3. Step 3: Cross multiply
    823,971.20x = 1,235,956.80 × 292,092.80
  4. Step 4: Simplify right side
    823,971.20x = 361,014,082,391.04
  5. Step 5: Solve for x
    x = 361,014,082,391.04/823,971.20
  6. Step 6: Final answer
    x = 438,139.20

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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.