Home / 1,551,928.38-2,140,447.74-1,008,239.28

Finding the Fourth Proportional to 1,551,928.38, 2,140,447.74 and 1,008,239.28

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Solution

The fourth proportional to 1,551,928.38, 2,140,447.74 and 1,008,239.28 is: 1,390,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551,928.38 : 2,140,447.74 = 1,008,239.28 : x
  2. Step 2: Convert to fraction form
    1,551,928.38/2,140,447.74 = 1,008,239.28/x
  3. Step 3: Cross multiply
    1,551,928.38x = 2,140,447.74 × 1,008,239.28
  4. Step 4: Simplify right side
    1,551,928.38x = 2,158,083,488,255.23
  5. Step 5: Solve for x
    x = 2,158,083,488,255.23/1,551,928.38
  6. Step 6: Final answer
    x = 1,390,581.88

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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.