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Finding the Fourth Proportional to 582.08, 801.77 and 476.78

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Solution

The fourth proportional to 582.08, 801.77 and 476.78 is: 656.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.08 : 801.77 = 476.78 : x
  2. Step 2: Convert to fraction form
    582.08/801.77 = 476.78/x
  3. Step 3: Cross multiply
    582.08x = 801.77 × 476.78
  4. Step 4: Simplify right side
    582.08x = 382,261.51
  5. Step 5: Solve for x
    x = 382,261.51/582.08
  6. Step 6: Final answer
    x = 656.72

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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.