Home / 690,878.92-1,036,355.54-217,601.32

Finding the Fourth Proportional to 690,878.92, 1,036,355.54 and 217,601.32

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Solution

The fourth proportional to 690,878.92, 1,036,355.54 and 217,601.32 is: 326,413.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,878.92 : 1,036,355.54 = 217,601.32 : x
  2. Step 2: Convert to fraction form
    690,878.92/1,036,355.54 = 217,601.32/x
  3. Step 3: Cross multiply
    690,878.92x = 1,036,355.54 × 217,601.32
  4. Step 4: Simplify right side
    690,878.92x = 225,512,333,493.31
  5. Step 5: Solve for x
    x = 225,512,333,493.31/690,878.92
  6. Step 6: Final answer
    x = 326,413.68

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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.