Home / 1,640,405.25-2,460,736.67-442,309.55

Finding the Fourth Proportional to 1,640,405.25, 2,460,736.67 and 442,309.55

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Solution

The fourth proportional to 1,640,405.25, 2,460,736.67 and 442,309.55 is: 663,499.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,405.25 : 2,460,736.67 = 442,309.55 : x
  2. Step 2: Convert to fraction form
    1,640,405.25/2,460,736.67 = 442,309.55/x
  3. Step 3: Cross multiply
    1,640,405.25x = 2,460,736.67 × 442,309.55
  4. Step 4: Simplify right side
    1,640,405.25x = 1,088,407,314,660.97
  5. Step 5: Solve for x
    x = 1,088,407,314,660.97/1,640,405.25
  6. Step 6: Final answer
    x = 663,499.04

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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.