Home / 746,138.24-1,029,418.08-455,643.80

Finding the Fourth Proportional to 746,138.24, 1,029,418.08 and 455,643.80

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Solution

The fourth proportional to 746,138.24, 1,029,418.08 and 455,643.80 is: 628,634.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,138.24 : 1,029,418.08 = 455,643.80 : x
  2. Step 2: Convert to fraction form
    746,138.24/1,029,418.08 = 455,643.80/x
  3. Step 3: Cross multiply
    746,138.24x = 1,029,418.08 × 455,643.80
  4. Step 4: Simplify right side
    746,138.24x = 469,047,965,759.90
  5. Step 5: Solve for x
    x = 469,047,965,759.90/746,138.24
  6. Step 6: Final answer
    x = 628,634.13

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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.