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Finding the Fourth Proportional to 634,334.70, 951,664.05 and 447,710.70

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Solution

The fourth proportional to 634,334.70, 951,664.05 and 447,710.70 is: 671,680.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,334.70 : 951,664.05 = 447,710.70 : x
  2. Step 2: Convert to fraction form
    634,334.70/951,664.05 = 447,710.70/x
  3. Step 3: Cross multiply
    634,334.70x = 951,664.05 × 447,710.70
  4. Step 4: Simplify right side
    634,334.70x = 426,070,177,990.34
  5. Step 5: Solve for x
    x = 426,070,177,990.34/634,334.70
  6. Step 6: Final answer
    x = 671,680.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.