Home / 433,083.05-649,617.40-129,477.90

Finding the Fourth Proportional to 433,083.05, 649,617.40 and 129,477.90

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Solution

The fourth proportional to 433,083.05, 649,617.40 and 129,477.90 is: 194,214.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,083.05 : 649,617.40 = 129,477.90 : x
  2. Step 2: Convert to fraction form
    433,083.05/649,617.40 = 129,477.90/x
  3. Step 3: Cross multiply
    433,083.05x = 649,617.40 × 129,477.90
  4. Step 4: Simplify right side
    433,083.05x = 84,111,096,431.77
  5. Step 5: Solve for x
    x = 84,111,096,431.77/433,083.05
  6. Step 6: Final answer
    x = 194,214.71

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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.