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Finding the Fourth Proportional to 549,562.72, 823,270.80 and 378,754.18

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Solution

The fourth proportional to 549,562.72, 823,270.80 and 378,754.18 is: 567,391.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,562.72 : 823,270.80 = 378,754.18 : x
  2. Step 2: Convert to fraction form
    549,562.72/823,270.80 = 378,754.18/x
  3. Step 3: Cross multiply
    549,562.72x = 823,270.80 × 378,754.18
  4. Step 4: Simplify right side
    549,562.72x = 311,817,256,771.94
  5. Step 5: Solve for x
    x = 311,817,256,771.94/549,562.72
  6. Step 6: Final answer
    x = 567,391.57

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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.