Home / 442,318.83-663,478.95-189,579.54

Finding the Fourth Proportional to 442,318.83, 663,478.95 and 189,579.54

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Solution

The fourth proportional to 442,318.83, 663,478.95 and 189,579.54 is: 284,369.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,318.83 : 663,478.95 = 189,579.54 : x
  2. Step 2: Convert to fraction form
    442,318.83/663,478.95 = 189,579.54/x
  3. Step 3: Cross multiply
    442,318.83x = 663,478.95 × 189,579.54
  4. Step 4: Simplify right side
    442,318.83x = 125,782,032,541.20
  5. Step 5: Solve for x
    x = 125,782,032,541.20/442,318.83
  6. Step 6: Final answer
    x = 284,369.61

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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.