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Finding the Fourth Proportional to 583, 870.68 and 551.44

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Solution

The fourth proportional to 583, 870.68 and 551.44 is: 823.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    583 : 870.68 = 551.44 : x
  2. Step 2: Convert to fraction form
    583/870.68 = 551.44/x
  3. Step 3: Cross multiply
    583x = 870.68 × 551.44
  4. Step 4: Simplify right side
    583x = 480,127.78
  5. Step 5: Solve for x
    x = 480,127.78/583
  6. Step 6: Final answer
    x = 823.55

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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.