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Finding the Fourth Proportional to 620,240.24, 930,364 and 220,896.56

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Solution

The fourth proportional to 620,240.24, 930,364 and 220,896.56 is: 331,346.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,240.24 : 930,364 = 220,896.56 : x
  2. Step 2: Convert to fraction form
    620,240.24/930,364 = 220,896.56/x
  3. Step 3: Cross multiply
    620,240.24x = 930,364 × 220,896.56
  4. Step 4: Simplify right side
    620,240.24x = 205,514,207,147.84
  5. Step 5: Solve for x
    x = 205,514,207,147.84/620,240.24
  6. Step 6: Final answer
    x = 331,346.14

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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.