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Finding the Fourth Proportional to 634,372, 875,352.90 and 347,816.68

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Solution

The fourth proportional to 634,372, 875,352.90 and 347,816.68 is: 479,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,372 : 875,352.90 = 347,816.68 : x
  2. Step 2: Convert to fraction form
    634,372/875,352.90 = 347,816.68/x
  3. Step 3: Cross multiply
    634,372x = 875,352.90 × 347,816.68
  4. Step 4: Simplify right side
    634,372x = 304,462,339,506.37
  5. Step 5: Solve for x
    x = 304,462,339,506.37/634,372
  6. Step 6: Final answer
    x = 479,942.90

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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.