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Finding the Fourth Proportional to 605,775.96, 907,499.34 and 338,726.52

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Solution

The fourth proportional to 605,775.96, 907,499.34 and 338,726.52 is: 507,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,775.96 : 907,499.34 = 338,726.52 : x
  2. Step 2: Convert to fraction form
    605,775.96/907,499.34 = 338,726.52/x
  3. Step 3: Cross multiply
    605,775.96x = 907,499.34 × 338,726.52
  4. Step 4: Simplify right side
    605,775.96x = 307,394,093,340.50
  5. Step 5: Solve for x
    x = 307,394,093,340.50/605,775.96
  6. Step 6: Final answer
    x = 507,438.58

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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.