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Finding the Fourth Proportional to 507,378.87, 761,103.85 and 203,773.05

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Solution

The fourth proportional to 507,378.87, 761,103.85 and 203,773.05 is: 305,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,378.87 : 761,103.85 = 203,773.05 : x
  2. Step 2: Convert to fraction form
    507,378.87/761,103.85 = 203,773.05/x
  3. Step 3: Cross multiply
    507,378.87x = 761,103.85 × 203,773.05
  4. Step 4: Simplify right side
    507,378.87x = 155,092,452,881.24
  5. Step 5: Solve for x
    x = 155,092,452,881.24/507,378.87
  6. Step 6: Final answer
    x = 305,673.85

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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.