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Finding the Fourth Proportional to 552,462.68, 762,390.84 and 310,745.42

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Solution

The fourth proportional to 552,462.68, 762,390.84 and 310,745.42 is: 428,824.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,462.68 : 762,390.84 = 310,745.42 : x
  2. Step 2: Convert to fraction form
    552,462.68/762,390.84 = 310,745.42/x
  3. Step 3: Cross multiply
    552,462.68x = 762,390.84 × 310,745.42
  4. Step 4: Simplify right side
    552,462.68x = 236,909,460,650.84
  5. Step 5: Solve for x
    x = 236,909,460,650.84/552,462.68
  6. Step 6: Final answer
    x = 428,824.37

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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.