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Finding the Fourth Proportional to 883.14, 1,218.89 and 510.07

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Solution

The fourth proportional to 883.14, 1,218.89 and 510.07 is: 703.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.14 : 1,218.89 = 510.07 : x
  2. Step 2: Convert to fraction form
    883.14/1,218.89 = 510.07/x
  3. Step 3: Cross multiply
    883.14x = 1,218.89 × 510.07
  4. Step 4: Simplify right side
    883.14x = 621,713.62
  5. Step 5: Solve for x
    x = 621,713.62/883.14
  6. Step 6: Final answer
    x = 703.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.