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Finding the Fourth Proportional to 628.51, 937.29 and 558.58

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Solution

The fourth proportional to 628.51, 937.29 and 558.58 is: 833.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.51 : 937.29 = 558.58 : x
  2. Step 2: Convert to fraction form
    628.51/937.29 = 558.58/x
  3. Step 3: Cross multiply
    628.51x = 937.29 × 558.58
  4. Step 4: Simplify right side
    628.51x = 523,543.97
  5. Step 5: Solve for x
    x = 523,543.97/628.51
  6. Step 6: Final answer
    x = 833.00

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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.