Home / 815,623.20-1,223,434.80-282,967.20

Finding the Fourth Proportional to 815,623.20, 1,223,434.80 and 282,967.20

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Solution

The fourth proportional to 815,623.20, 1,223,434.80 and 282,967.20 is: 424,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,623.20 : 1,223,434.80 = 282,967.20 : x
  2. Step 2: Convert to fraction form
    815,623.20/1,223,434.80 = 282,967.20/x
  3. Step 3: Cross multiply
    815,623.20x = 1,223,434.80 × 282,967.20
  4. Step 4: Simplify right side
    815,623.20x = 346,191,919,738.56
  5. Step 5: Solve for x
    x = 346,191,919,738.56/815,623.20
  6. Step 6: Final answer
    x = 424,450.80

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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.