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Finding the Fourth Proportional to 542,777.31, 749,122.38 and 301,137.69

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Solution

The fourth proportional to 542,777.31, 749,122.38 and 301,137.69 is: 415,619.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,777.31 : 749,122.38 = 301,137.69 : x
  2. Step 2: Convert to fraction form
    542,777.31/749,122.38 = 301,137.69/x
  3. Step 3: Cross multiply
    542,777.31x = 749,122.38 × 301,137.69
  4. Step 4: Simplify right side
    542,777.31x = 225,588,983,040.50
  5. Step 5: Solve for x
    x = 225,588,983,040.50/542,777.31
  6. Step 6: Final answer
    x = 415,619.77

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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.