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Finding the Fourth Proportional to 582.48, 874.36 and 576.40

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Solution

The fourth proportional to 582.48, 874.36 and 576.40 is: 865.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.48 : 874.36 = 576.40 : x
  2. Step 2: Convert to fraction form
    582.48/874.36 = 576.40/x
  3. Step 3: Cross multiply
    582.48x = 874.36 × 576.40
  4. Step 4: Simplify right side
    582.48x = 503,981.10
  5. Step 5: Solve for x
    x = 503,981.10/582.48
  6. Step 6: Final answer
    x = 865.23

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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.