Home / 772,366.52-1,065,928.95-428,310.37

Finding the Fourth Proportional to 772,366.52, 1,065,928.95 and 428,310.37

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Solution

The fourth proportional to 772,366.52, 1,065,928.95 and 428,310.37 is: 591,103.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,366.52 : 1,065,928.95 = 428,310.37 : x
  2. Step 2: Convert to fraction form
    772,366.52/1,065,928.95 = 428,310.37/x
  3. Step 3: Cross multiply
    772,366.52x = 1,065,928.95 × 428,310.37
  4. Step 4: Simplify right side
    772,366.52x = 456,548,422,968.21
  5. Step 5: Solve for x
    x = 456,548,422,968.21/772,366.52
  6. Step 6: Final answer
    x = 591,103.33

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1.5x scale

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.