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Finding the Fourth Proportional to 634,570.40, 951,625.20 and 318,922.40

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Solution

The fourth proportional to 634,570.40, 951,625.20 and 318,922.40 is: 478,267.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,570.40 : 951,625.20 = 318,922.40 : x
  2. Step 2: Convert to fraction form
    634,570.40/951,625.20 = 318,922.40/x
  3. Step 3: Cross multiply
    634,570.40x = 951,625.20 × 318,922.40
  4. Step 4: Simplify right side
    634,570.40x = 303,494,592,684.48
  5. Step 5: Solve for x
    x = 303,494,592,684.48/634,570.40
  6. Step 6: Final answer
    x = 478,267.81

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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.