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Finding the Fourth Proportional to 566,199.75, 781,361.13 and 311,556.42

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Solution

The fourth proportional to 566,199.75, 781,361.13 and 311,556.42 is: 429,950.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,199.75 : 781,361.13 = 311,556.42 : x
  2. Step 2: Convert to fraction form
    566,199.75/781,361.13 = 311,556.42/x
  3. Step 3: Cross multiply
    566,199.75x = 781,361.13 × 311,556.42
  4. Step 4: Simplify right side
    566,199.75x = 243,438,076,389.96
  5. Step 5: Solve for x
    x = 243,438,076,389.96/566,199.75
  6. Step 6: Final answer
    x = 429,950.87

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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.