Home / 1,008,066.90-1,512,100.35-672,143.70

Finding the Fourth Proportional to 1,008,066.90, 1,512,100.35 and 672,143.70

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Solution

The fourth proportional to 1,008,066.90, 1,512,100.35 and 672,143.70 is: 1,008,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,066.90 : 1,512,100.35 = 672,143.70 : x
  2. Step 2: Convert to fraction form
    1,008,066.90/1,512,100.35 = 672,143.70/x
  3. Step 3: Cross multiply
    1,008,066.90x = 1,512,100.35 × 672,143.70
  4. Step 4: Simplify right side
    1,008,066.90x = 1,016,348,724,020.30
  5. Step 5: Solve for x
    x = 1,016,348,724,020.30/1,008,066.90
  6. Step 6: Final answer
    x = 1,008,215.55

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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.