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Finding the Fourth Proportional to 623.42, 930.96 and 587.42

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Solution

The fourth proportional to 623.42, 930.96 and 587.42 is: 877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.42 : 930.96 = 587.42 : x
  2. Step 2: Convert to fraction form
    623.42/930.96 = 587.42/x
  3. Step 3: Cross multiply
    623.42x = 930.96 × 587.42
  4. Step 4: Simplify right side
    623.42x = 546,864.52
  5. Step 5: Solve for x
    x = 546,864.52/623.42
  6. Step 6: Final answer
    x = 877.20

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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.