Home / 644,496.60-966,453.30-289,327.80

Finding the Fourth Proportional to 644,496.60, 966,453.30 and 289,327.80

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Solution

The fourth proportional to 644,496.60, 966,453.30 and 289,327.80 is: 433,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,496.60 : 966,453.30 = 289,327.80 : x
  2. Step 2: Convert to fraction form
    644,496.60/966,453.30 = 289,327.80/x
  3. Step 3: Cross multiply
    644,496.60x = 966,453.30 × 289,327.80
  4. Step 4: Simplify right side
    644,496.60x = 279,621,807,091.74
  5. Step 5: Solve for x
    x = 279,621,807,091.74/644,496.60
  6. Step 6: Final answer
    x = 433,860.79

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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.