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Finding the Fourth Proportional to 703,413.01, 970,703.60 and 381,122.11

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Solution

The fourth proportional to 703,413.01, 970,703.60 and 381,122.11 is: 525,945.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,413.01 : 970,703.60 = 381,122.11 : x
  2. Step 2: Convert to fraction form
    703,413.01/970,703.60 = 381,122.11/x
  3. Step 3: Cross multiply
    703,413.01x = 970,703.60 × 381,122.11
  4. Step 4: Simplify right side
    703,413.01x = 369,956,603,524.37
  5. Step 5: Solve for x
    x = 369,956,603,524.37/703,413.01
  6. Step 6: Final answer
    x = 525,945.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.