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Finding the Fourth Proportional to 566,173.44, 781,299.84 and 311,500.80

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Solution

The fourth proportional to 566,173.44, 781,299.84 and 311,500.80 is: 429,860.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,173.44 : 781,299.84 = 311,500.80 : x
  2. Step 2: Convert to fraction form
    566,173.44/781,299.84 = 311,500.80/x
  3. Step 3: Cross multiply
    566,173.44x = 781,299.84 × 311,500.80
  4. Step 4: Simplify right side
    566,173.44x = 243,375,525,199.87
  5. Step 5: Solve for x
    x = 243,375,525,199.87/566,173.44
  6. Step 6: Final answer
    x = 429,860.37

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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.