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Finding the Fourth Proportional to 549,967.62, 758,940.94 and 308,265.85

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Solution

The fourth proportional to 549,967.62, 758,940.94 and 308,265.85 is: 425,398.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,967.62 : 758,940.94 = 308,265.85 : x
  2. Step 2: Convert to fraction form
    549,967.62/758,940.94 = 308,265.85/x
  3. Step 3: Cross multiply
    549,967.62x = 758,940.94 × 308,265.85
  4. Step 4: Simplify right side
    549,967.62x = 233,955,575,302.91
  5. Step 5: Solve for x
    x = 233,955,575,302.91/549,967.62
  6. Step 6: Final answer
    x = 425,398.81

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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.