Home / 1,323,313.96-1,985,167.78-613,413.76

Finding the Fourth Proportional to 1,323,313.96, 1,985,167.78 and 613,413.76

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Solution

The fourth proportional to 1,323,313.96, 1,985,167.78 and 613,413.76 is: 920,211.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,313.96 : 1,985,167.78 = 613,413.76 : x
  2. Step 2: Convert to fraction form
    1,323,313.96/1,985,167.78 = 613,413.76/x
  3. Step 3: Cross multiply
    1,323,313.96x = 1,985,167.78 × 613,413.76
  4. Step 4: Simplify right side
    1,323,313.96x = 1,217,729,232,160.65
  5. Step 5: Solve for x
    x = 1,217,729,232,160.65/1,323,313.96
  6. Step 6: Final answer
    x = 920,211.88

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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.