Home / 690,678.50-1,036,076.43-192,042.50

Finding the Fourth Proportional to 690,678.50, 1,036,076.43 and 192,042.50

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Solution

The fourth proportional to 690,678.50, 1,036,076.43 and 192,042.50 is: 288,080.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,678.50 : 1,036,076.43 = 192,042.50 : x
  2. Step 2: Convert to fraction form
    690,678.50/1,036,076.43 = 192,042.50/x
  3. Step 3: Cross multiply
    690,678.50x = 1,036,076.43 × 192,042.50
  4. Step 4: Simplify right side
    690,678.50x = 198,970,707,808.28
  5. Step 5: Solve for x
    x = 198,970,707,808.28/690,678.50
  6. Step 6: Final answer
    x = 288,080.07

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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.