Home / 490,716.06-677,143.48-283,948.71

Finding the Fourth Proportional to 490,716.06, 677,143.48 and 283,948.71

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Solution

The fourth proportional to 490,716.06, 677,143.48 and 283,948.71 is: 391,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,716.06 : 677,143.48 = 283,948.71 : x
  2. Step 2: Convert to fraction form
    490,716.06/677,143.48 = 283,948.71/x
  3. Step 3: Cross multiply
    490,716.06x = 677,143.48 × 283,948.71
  4. Step 4: Simplify right side
    490,716.06x = 192,274,017,630.91
  5. Step 5: Solve for x
    x = 192,274,017,630.91/490,716.06
  6. Step 6: Final answer
    x = 391,823.36

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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.