Home / 553,149.18-763,419.87-323,776.62

Finding the Fourth Proportional to 553,149.18, 763,419.87 and 323,776.62

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Solution

The fourth proportional to 553,149.18, 763,419.87 and 323,776.62 is: 446,855.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,149.18 : 763,419.87 = 323,776.62 : x
  2. Step 2: Convert to fraction form
    553,149.18/763,419.87 = 323,776.62/x
  3. Step 3: Cross multiply
    553,149.18x = 763,419.87 × 323,776.62
  4. Step 4: Simplify right side
    553,149.18x = 247,177,505,149.44
  5. Step 5: Solve for x
    x = 247,177,505,149.44/553,149.18
  6. Step 6: Final answer
    x = 446,855.05

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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.