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Finding the Fourth Proportional to 634,441.41, 875,541.15 and 347,976

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Solution

The fourth proportional to 634,441.41, 875,541.15 and 347,976 is: 480,213.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,441.41 : 875,541.15 = 347,976 : x
  2. Step 2: Convert to fraction form
    634,441.41/875,541.15 = 347,976/x
  3. Step 3: Cross multiply
    634,441.41x = 875,541.15 × 347,976
  4. Step 4: Simplify right side
    634,441.41x = 304,667,307,212.40
  5. Step 5: Solve for x
    x = 304,667,307,212.40/634,441.41
  6. Step 6: Final answer
    x = 480,213.46

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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.