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Finding the Fourth Proportional to 644,073.54, 888,849.24 and 357,593.64

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Solution

The fourth proportional to 644,073.54, 888,849.24 and 357,593.64 is: 493,494.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,073.54 : 888,849.24 = 357,593.64 : x
  2. Step 2: Convert to fraction form
    644,073.54/888,849.24 = 357,593.64/x
  3. Step 3: Cross multiply
    644,073.54x = 888,849.24 × 357,593.64
  4. Step 4: Simplify right side
    644,073.54x = 317,846,835,142.83
  5. Step 5: Solve for x
    x = 317,846,835,142.83/644,073.54
  6. Step 6: Final answer
    x = 493,494.63

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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.