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Finding the Fourth Proportional to 650,453.56, 897,562.69 and 378,557.49

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Solution

The fourth proportional to 650,453.56, 897,562.69 and 378,557.49 is: 522,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,453.56 : 897,562.69 = 378,557.49 : x
  2. Step 2: Convert to fraction form
    650,453.56/897,562.69 = 378,557.49/x
  3. Step 3: Cross multiply
    650,453.56x = 897,562.69 × 378,557.49
  4. Step 4: Simplify right side
    650,453.56x = 339,779,079,044.05
  5. Step 5: Solve for x
    x = 339,779,079,044.05/650,453.56
  6. Step 6: Final answer
    x = 522,372.54

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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.