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Finding the Fourth Proportional to 587.04, 808.95 and 455.82

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Solution

The fourth proportional to 587.04, 808.95 and 455.82 is: 628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.04 : 808.95 = 455.82 : x
  2. Step 2: Convert to fraction form
    587.04/808.95 = 455.82/x
  3. Step 3: Cross multiply
    587.04x = 808.95 × 455.82
  4. Step 4: Simplify right side
    587.04x = 368,735.59
  5. Step 5: Solve for x
    x = 368,735.59/587.04
  6. Step 6: Final answer
    x = 628.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.