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Finding the Fourth Proportional to 630.86, 942.96 and 547.93

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Solution

The fourth proportional to 630.86, 942.96 and 547.93 is: 819.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.86 : 942.96 = 547.93 : x
  2. Step 2: Convert to fraction form
    630.86/942.96 = 547.93/x
  3. Step 3: Cross multiply
    630.86x = 942.96 × 547.93
  4. Step 4: Simplify right side
    630.86x = 516,676.07
  5. Step 5: Solve for x
    x = 516,676.07/630.86
  6. Step 6: Final answer
    x = 819.00

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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.