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Finding the Fourth Proportional to 614.73, 848.46 and 390.52

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Solution

The fourth proportional to 614.73, 848.46 and 390.52 is: 539.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.73 : 848.46 = 390.52 : x
  2. Step 2: Convert to fraction form
    614.73/848.46 = 390.52/x
  3. Step 3: Cross multiply
    614.73x = 848.46 × 390.52
  4. Step 4: Simplify right side
    614.73x = 331,340.60
  5. Step 5: Solve for x
    x = 331,340.60/614.73
  6. Step 6: Final answer
    x = 539.00

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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.