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Finding the Fourth Proportional to 644,110.80, 965,820.60 and 269,710.80

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Solution

The fourth proportional to 644,110.80, 965,820.60 and 269,710.80 is: 404,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,110.80 : 965,820.60 = 269,710.80 : x
  2. Step 2: Convert to fraction form
    644,110.80/965,820.60 = 269,710.80/x
  3. Step 3: Cross multiply
    644,110.80x = 965,820.60 × 269,710.80
  4. Step 4: Simplify right side
    644,110.80x = 260,492,246,682.48
  5. Step 5: Solve for x
    x = 260,492,246,682.48/644,110.80
  6. Step 6: Final answer
    x = 404,421.49

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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.