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Finding the Fourth Proportional to 606.31, 904.78 and 540.79

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Solution

The fourth proportional to 606.31, 904.78 and 540.79 is: 807.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.31 : 904.78 = 540.79 : x
  2. Step 2: Convert to fraction form
    606.31/904.78 = 540.79/x
  3. Step 3: Cross multiply
    606.31x = 904.78 × 540.79
  4. Step 4: Simplify right side
    606.31x = 489,294.39
  5. Step 5: Solve for x
    x = 489,294.39/606.31
  6. Step 6: Final answer
    x = 807.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.