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Finding the Fourth Proportional to 587.50, 881.26 and 457.19

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Solution

The fourth proportional to 587.50, 881.26 and 457.19 is: 685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.50 : 881.26 = 457.19 : x
  2. Step 2: Convert to fraction form
    587.50/881.26 = 457.19/x
  3. Step 3: Cross multiply
    587.50x = 881.26 × 457.19
  4. Step 4: Simplify right side
    587.50x = 402,908.54
  5. Step 5: Solve for x
    x = 402,908.54/587.50
  6. Step 6: Final answer
    x = 685.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.