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Finding the Fourth Proportional to 549,761.68, 758,782.02 and 375,796.78

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Solution

The fourth proportional to 549,761.68, 758,782.02 and 375,796.78 is: 518,675.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,761.68 : 758,782.02 = 375,796.78 : x
  2. Step 2: Convert to fraction form
    549,761.68/758,782.02 = 375,796.78/x
  3. Step 3: Cross multiply
    549,761.68x = 758,782.02 × 375,796.78
  4. Step 4: Simplify right side
    549,761.68x = 285,147,839,837.90
  5. Step 5: Solve for x
    x = 285,147,839,837.90/549,761.68
  6. Step 6: Final answer
    x = 518,675.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.