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Finding the Fourth Proportional to 614.83, 848.55 and 428.22

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Solution

The fourth proportional to 614.83, 848.55 and 428.22 is: 591.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.83 : 848.55 = 428.22 : x
  2. Step 2: Convert to fraction form
    614.83/848.55 = 428.22/x
  3. Step 3: Cross multiply
    614.83x = 848.55 × 428.22
  4. Step 4: Simplify right side
    614.83x = 363,366.08
  5. Step 5: Solve for x
    x = 363,366.08/614.83
  6. Step 6: Final answer
    x = 591.00

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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.