Home / 764,871.39-1,054,894.16-678,893.07

Finding the Fourth Proportional to 764,871.39, 1,054,894.16 and 678,893.07

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Solution

The fourth proportional to 764,871.39, 1,054,894.16 and 678,893.07 is: 936,314.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,871.39 : 1,054,894.16 = 678,893.07 : x
  2. Step 2: Convert to fraction form
    764,871.39/1,054,894.16 = 678,893.07/x
  3. Step 3: Cross multiply
    764,871.39x = 1,054,894.16 × 678,893.07
  4. Step 4: Simplify right side
    764,871.39x = 716,160,331,413.01
  5. Step 5: Solve for x
    x = 716,160,331,413.01/764,871.39
  6. Step 6: Final answer
    x = 936,314.71

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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.