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Finding the Fourth Proportional to 614.97, 848.31 and 449.01

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Solution

The fourth proportional to 614.97, 848.31 and 449.01 is: 619.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.97 : 848.31 = 449.01 : x
  2. Step 2: Convert to fraction form
    614.97/848.31 = 449.01/x
  3. Step 3: Cross multiply
    614.97x = 848.31 × 449.01
  4. Step 4: Simplify right side
    614.97x = 380,899.67
  5. Step 5: Solve for x
    x = 380,899.67/614.97
  6. Step 6: Final answer
    x = 619.38

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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.