Home / 738,413.70-1,107,620.55-422,610.90

Finding the Fourth Proportional to 738,413.70, 1,107,620.55 and 422,610.90

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Solution

The fourth proportional to 738,413.70, 1,107,620.55 and 422,610.90 is: 633,916.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,413.70 : 1,107,620.55 = 422,610.90 : x
  2. Step 2: Convert to fraction form
    738,413.70/1,107,620.55 = 422,610.90/x
  3. Step 3: Cross multiply
    738,413.70x = 1,107,620.55 × 422,610.90
  4. Step 4: Simplify right side
    738,413.70x = 468,092,517,494.00
  5. Step 5: Solve for x
    x = 468,092,517,494.00/738,413.70
  6. Step 6: Final answer
    x = 633,916.35

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Double scale
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Similar ratio
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1.5x scale

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.