Home / 1,512,380.03-2,087,231.52-1,129,742.51

Finding the Fourth Proportional to 1,512,380.03, 2,087,231.52 and 1,129,742.51

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Solution

The fourth proportional to 1,512,380.03, 2,087,231.52 and 1,129,742.51 is: 1,559,154.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,380.03 : 2,087,231.52 = 1,129,742.51 : x
  2. Step 2: Convert to fraction form
    1,512,380.03/2,087,231.52 = 1,129,742.51/x
  3. Step 3: Cross multiply
    1,512,380.03x = 2,087,231.52 × 1,129,742.51
  4. Step 4: Simplify right side
    1,512,380.03x = 2,358,034,165,919.76
  5. Step 5: Solve for x
    x = 2,358,034,165,919.76/1,512,380.03
  6. Step 6: Final answer
    x = 1,559,154.53

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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.