Home / 678,470.53-1,017,550.31-404,993.94

Finding the Fourth Proportional to 678,470.53, 1,017,550.31 and 404,993.94

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Solution

The fourth proportional to 678,470.53, 1,017,550.31 and 404,993.94 is: 607,398.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,470.53 : 1,017,550.31 = 404,993.94 : x
  2. Step 2: Convert to fraction form
    678,470.53/1,017,550.31 = 404,993.94/x
  3. Step 3: Cross multiply
    678,470.53x = 1,017,550.31 × 404,993.94
  4. Step 4: Simplify right side
    678,470.53x = 412,101,707,170.15
  5. Step 5: Solve for x
    x = 412,101,707,170.15/678,470.53
  6. Step 6: Final answer
    x = 607,398.10

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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.