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Finding the Fourth Proportional to 512.84, 703.14 and 503.60

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Solution

The fourth proportional to 512.84, 703.14 and 503.60 is: 690.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    512.84 : 703.14 = 503.60 : x
  2. Step 2: Convert to fraction form
    512.84/703.14 = 503.60/x
  3. Step 3: Cross multiply
    512.84x = 703.14 × 503.60
  4. Step 4: Simplify right side
    512.84x = 354,095.90
  5. Step 5: Solve for x
    x = 354,095.90/512.84
  6. Step 6: Final answer
    x = 690.46

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.