Home / 828,223.86-1,242,351.33-259,592.40

Finding the Fourth Proportional to 828,223.86, 1,242,351.33 and 259,592.40

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Solution

The fourth proportional to 828,223.86, 1,242,351.33 and 259,592.40 is: 389,393.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,223.86 : 1,242,351.33 = 259,592.40 : x
  2. Step 2: Convert to fraction form
    828,223.86/1,242,351.33 = 259,592.40/x
  3. Step 3: Cross multiply
    828,223.86x = 1,242,351.33 × 259,592.40
  4. Step 4: Simplify right side
    828,223.86x = 322,504,963,397.89
  5. Step 5: Solve for x
    x = 322,504,963,397.89/828,223.86
  6. Step 6: Final answer
    x = 389,393.47

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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.