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Finding the Fourth Proportional to 594.95, 821.34 and 447.93

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Solution

The fourth proportional to 594.95, 821.34 and 447.93 is: 618.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.95 : 821.34 = 447.93 : x
  2. Step 2: Convert to fraction form
    594.95/821.34 = 447.93/x
  3. Step 3: Cross multiply
    594.95x = 821.34 × 447.93
  4. Step 4: Simplify right side
    594.95x = 367,902.83
  5. Step 5: Solve for x
    x = 367,902.83/594.95
  6. Step 6: Final answer
    x = 618.38

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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.