Home / 757,965.64-1,045,965.12-418,426.60

Finding the Fourth Proportional to 757,965.64, 1,045,965.12 and 418,426.60

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Solution

The fourth proportional to 757,965.64, 1,045,965.12 and 418,426.60 is: 577,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,965.64 : 1,045,965.12 = 418,426.60 : x
  2. Step 2: Convert to fraction form
    757,965.64/1,045,965.12 = 418,426.60/x
  3. Step 3: Cross multiply
    757,965.64x = 1,045,965.12 × 418,426.60
  4. Step 4: Simplify right side
    757,965.64x = 437,659,628,880.19
  5. Step 5: Solve for x
    x = 437,659,628,880.19/757,965.64
  6. Step 6: Final answer
    x = 577,413.55

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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.