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Finding the Fourth Proportional to 584.00, 807.08 and 478.93

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Solution

The fourth proportional to 584.00, 807.08 and 478.93 is: 661.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.00 : 807.08 = 478.93 : x
  2. Step 2: Convert to fraction form
    584.00/807.08 = 478.93/x
  3. Step 3: Cross multiply
    584.00x = 807.08 × 478.93
  4. Step 4: Simplify right side
    584.00x = 386,534.00
  5. Step 5: Solve for x
    x = 386,534.00/584.00
  6. Step 6: Final answer
    x = 661.87

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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.