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Finding the Fourth Proportional to 448,625.70, 619,086.34 and 247,421.70

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Solution

The fourth proportional to 448,625.70, 619,086.34 and 247,421.70 is: 341,432.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,625.70 : 619,086.34 = 247,421.70 : x
  2. Step 2: Convert to fraction form
    448,625.70/619,086.34 = 247,421.70/x
  3. Step 3: Cross multiply
    448,625.70x = 619,086.34 × 247,421.70
  4. Step 4: Simplify right side
    448,625.70x = 153,175,394,689.58
  5. Step 5: Solve for x
    x = 153,175,394,689.58/448,625.70
  6. Step 6: Final answer
    x = 341,432.50

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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.