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Finding the Fourth Proportional to 586.90, 881.94 and 553.33

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Solution

The fourth proportional to 586.90, 881.94 and 553.33 is: 831.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.90 : 881.94 = 553.33 : x
  2. Step 2: Convert to fraction form
    586.90/881.94 = 553.33/x
  3. Step 3: Cross multiply
    586.90x = 881.94 × 553.33
  4. Step 4: Simplify right side
    586.90x = 488,003.93
  5. Step 5: Solve for x
    x = 488,003.93/586.90
  6. Step 6: Final answer
    x = 831.50

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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.