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Finding the Fourth Proportional to 644,104.56, 888,847.38 and 357,617.28

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Solution

The fourth proportional to 644,104.56, 888,847.38 and 357,617.28 is: 493,502.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,104.56 : 888,847.38 = 357,617.28 : x
  2. Step 2: Convert to fraction form
    644,104.56/888,847.38 = 357,617.28/x
  3. Step 3: Cross multiply
    644,104.56x = 888,847.38 × 357,617.28
  4. Step 4: Simplify right side
    644,104.56x = 317,867,182,370.73
  5. Step 5: Solve for x
    x = 317,867,182,370.73/644,104.56
  6. Step 6: Final answer
    x = 493,502.46

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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.