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Finding the Fourth Proportional to 618,774, 928,018.44 and 349,020.24

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Solution

The fourth proportional to 618,774, 928,018.44 and 349,020.24 is: 523,449.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,774 : 928,018.44 = 349,020.24 : x
  2. Step 2: Convert to fraction form
    618,774/928,018.44 = 349,020.24/x
  3. Step 3: Cross multiply
    618,774x = 928,018.44 × 349,020.24
  4. Step 4: Simplify right side
    618,774x = 323,897,218,653.23
  5. Step 5: Solve for x
    x = 323,897,218,653.23/618,774
  6. Step 6: Final answer
    x = 523,449.95

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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.