Home / 1,086,705.20-1,628,502.60-753,892.40

Finding the Fourth Proportional to 1,086,705.20, 1,628,502.60 and 753,892.40

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Solution

The fourth proportional to 1,086,705.20, 1,628,502.60 and 753,892.40 is: 1,129,759.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,705.20 : 1,628,502.60 = 753,892.40 : x
  2. Step 2: Convert to fraction form
    1,086,705.20/1,628,502.60 = 753,892.40/x
  3. Step 3: Cross multiply
    1,086,705.20x = 1,628,502.60 × 753,892.40
  4. Step 4: Simplify right side
    1,086,705.20x = 1,227,715,733,520.24
  5. Step 5: Solve for x
    x = 1,227,715,733,520.24/1,086,705.20
  6. Step 6: Final answer
    x = 1,129,759.69

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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.