Home / 690,878.43-1,036,354.77-217,600.83

Finding the Fourth Proportional to 690,878.43, 1,036,354.77 and 217,600.83

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Solution

The fourth proportional to 690,878.43, 1,036,354.77 and 217,600.83 is: 326,412.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,878.43 : 1,036,354.77 = 217,600.83 : x
  2. Step 2: Convert to fraction form
    690,878.43/1,036,354.77 = 217,600.83/x
  3. Step 3: Cross multiply
    690,878.43x = 1,036,354.77 × 217,600.83
  4. Step 4: Simplify right side
    690,878.43x = 225,511,658,126.46
  5. Step 5: Solve for x
    x = 225,511,658,126.46/690,878.43
  6. Step 6: Final answer
    x = 326,412.94

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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.