Home / 1,200,949.31-1,801,140.95-442,378.83

Finding the Fourth Proportional to 1,200,949.31, 1,801,140.95 and 442,378.83

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Solution

The fourth proportional to 1,200,949.31, 1,801,140.95 and 442,378.83 is: 663,464.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,949.31 : 1,801,140.95 = 442,378.83 : x
  2. Step 2: Convert to fraction form
    1,200,949.31/1,801,140.95 = 442,378.83/x
  3. Step 3: Cross multiply
    1,200,949.31x = 1,801,140.95 × 442,378.83
  4. Step 4: Simplify right side
    1,200,949.31x = 796,786,623,914.20
  5. Step 5: Solve for x
    x = 796,786,623,914.20/1,200,949.31
  6. Step 6: Final answer
    x = 663,464.00

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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.