Home / 819,369.70-1,229,054.58-258,447.94

Finding the Fourth Proportional to 819,369.70, 1,229,054.58 and 258,447.94

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Solution

The fourth proportional to 819,369.70, 1,229,054.58 and 258,447.94 is: 387,671.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,369.70 : 1,229,054.58 = 258,447.94 : x
  2. Step 2: Convert to fraction form
    819,369.70/1,229,054.58 = 258,447.94/x
  3. Step 3: Cross multiply
    819,369.70x = 1,229,054.58 × 258,447.94
  4. Step 4: Simplify right side
    819,369.70x = 317,646,624,348.57
  5. Step 5: Solve for x
    x = 317,646,624,348.57/819,369.70
  6. Step 6: Final answer
    x = 387,671.92

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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.