Home / 1,381,413.68-2,072,400.78-434,564.18

Finding the Fourth Proportional to 1,381,413.68, 2,072,400.78 and 434,564.18

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Solution

The fourth proportional to 1,381,413.68, 2,072,400.78 and 434,564.18 is: 651,934.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,413.68 : 2,072,400.78 = 434,564.18 : x
  2. Step 2: Convert to fraction form
    1,381,413.68/2,072,400.78 = 434,564.18/x
  3. Step 3: Cross multiply
    1,381,413.68x = 2,072,400.78 × 434,564.18
  4. Step 4: Simplify right side
    1,381,413.68x = 900,591,135,230.06
  5. Step 5: Solve for x
    x = 900,591,135,230.06/1,381,413.68
  6. Step 6: Final answer
    x = 651,934.43

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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.