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Finding the Fourth Proportional to 426,421, 588,512.82 and 247,573

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Solution

The fourth proportional to 426,421, 588,512.82 and 247,573 is: 341,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,421 : 588,512.82 = 247,573 : x
  2. Step 2: Convert to fraction form
    426,421/588,512.82 = 247,573/x
  3. Step 3: Cross multiply
    426,421x = 588,512.82 × 247,573
  4. Step 4: Simplify right side
    426,421x = 145,699,884,385.86
  5. Step 5: Solve for x
    x = 145,699,884,385.86/426,421
  6. Step 6: Final answer
    x = 341,680.84

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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.