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Finding the Fourth Proportional to 848.84, 1,272.76 and 502.57

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Solution

The fourth proportional to 848.84, 1,272.76 and 502.57 is: 753.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.84 : 1,272.76 = 502.57 : x
  2. Step 2: Convert to fraction form
    848.84/1,272.76 = 502.57/x
  3. Step 3: Cross multiply
    848.84x = 1,272.76 × 502.57
  4. Step 4: Simplify right side
    848.84x = 639,646.55
  5. Step 5: Solve for x
    x = 639,646.55/848.84
  6. Step 6: Final answer
    x = 753.55

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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.