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Finding the Fourth Proportional to 636,040.86, 877,757.43 and 349,571.10

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Solution

The fourth proportional to 636,040.86, 877,757.43 and 349,571.10 is: 482,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,040.86 : 877,757.43 = 349,571.10 : x
  2. Step 2: Convert to fraction form
    636,040.86/877,757.43 = 349,571.10/x
  3. Step 3: Cross multiply
    636,040.86x = 877,757.43 × 349,571.10
  4. Step 4: Simplify right side
    636,040.86x = 306,838,630,338.27
  5. Step 5: Solve for x
    x = 306,838,630,338.27/636,040.86
  6. Step 6: Final answer
    x = 482,419.68

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1.5x scale

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.