Home / 1,112,555.98-1,667,708.43-438,375.16

Finding the Fourth Proportional to 1,112,555.98, 1,667,708.43 and 438,375.16

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Solution

The fourth proportional to 1,112,555.98, 1,667,708.43 and 438,375.16 is: 657,119.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,555.98 : 1,667,708.43 = 438,375.16 : x
  2. Step 2: Convert to fraction form
    1,112,555.98/1,667,708.43 = 438,375.16/x
  3. Step 3: Cross multiply
    1,112,555.98x = 1,667,708.43 × 438,375.16
  4. Step 4: Simplify right side
    1,112,555.98x = 731,081,949,834.60
  5. Step 5: Solve for x
    x = 731,081,949,834.60/1,112,555.98
  6. Step 6: Final answer
    x = 657,119.25

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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.