Home / 771,486.92-1,157,413.74-321,958.04

Finding the Fourth Proportional to 771,486.92, 1,157,413.74 and 321,958.04

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Solution

The fourth proportional to 771,486.92, 1,157,413.74 and 321,958.04 is: 483,013.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,486.92 : 1,157,413.74 = 321,958.04 : x
  2. Step 2: Convert to fraction form
    771,486.92/1,157,413.74 = 321,958.04/x
  3. Step 3: Cross multiply
    771,486.92x = 1,157,413.74 × 321,958.04
  4. Step 4: Simplify right side
    771,486.92x = 372,638,659,199.47
  5. Step 5: Solve for x
    x = 372,638,659,199.47/771,486.92
  6. Step 6: Final answer
    x = 483,013.58

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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.