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Finding the Fourth Proportional to 614.62, 848.52 and 448.66

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Solution

The fourth proportional to 614.62, 848.52 and 448.66 is: 619.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.62 : 848.52 = 448.66 : x
  2. Step 2: Convert to fraction form
    614.62/848.52 = 448.66/x
  3. Step 3: Cross multiply
    614.62x = 848.52 × 448.66
  4. Step 4: Simplify right side
    614.62x = 380,696.98
  5. Step 5: Solve for x
    x = 380,696.98/614.62
  6. Step 6: Final answer
    x = 619.40

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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.