Home / 698,464.05-964,143.69-408,169.87

Finding the Fourth Proportional to 698,464.05, 964,143.69 and 408,169.87

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Solution

The fourth proportional to 698,464.05, 964,143.69 and 408,169.87 is: 563,428.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,464.05 : 964,143.69 = 408,169.87 : x
  2. Step 2: Convert to fraction form
    698,464.05/964,143.69 = 408,169.87/x
  3. Step 3: Cross multiply
    698,464.05x = 964,143.69 × 408,169.87
  4. Step 4: Simplify right side
    698,464.05x = 393,534,404,608.62
  5. Step 5: Solve for x
    x = 393,534,404,608.62/698,464.05
  6. Step 6: Final answer
    x = 563,428.29

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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.