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Finding the Fourth Proportional to 657,943.90, 986,150.40 and 302,993.80

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Solution

The fourth proportional to 657,943.90, 986,150.40 and 302,993.80 is: 454,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,943.90 : 986,150.40 = 302,993.80 : x
  2. Step 2: Convert to fraction form
    657,943.90/986,150.40 = 302,993.80/x
  3. Step 3: Cross multiply
    657,943.90x = 986,150.40 × 302,993.80
  4. Step 4: Simplify right side
    657,943.90x = 298,797,457,067.52
  5. Step 5: Solve for x
    x = 298,797,457,067.52/657,943.90
  6. Step 6: Final answer
    x = 454,138.20

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1.5x scale

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.