Home / 1,538,793.40-2,309,502.30-687,175.60

Finding the Fourth Proportional to 1,538,793.40, 2,309,502.30 and 687,175.60

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Solution

The fourth proportional to 1,538,793.40, 2,309,502.30 and 687,175.60 is: 1,031,349.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,793.40 : 2,309,502.30 = 687,175.60 : x
  2. Step 2: Convert to fraction form
    1,538,793.40/2,309,502.30 = 687,175.60/x
  3. Step 3: Cross multiply
    1,538,793.40x = 2,309,502.30 × 687,175.60
  4. Step 4: Simplify right side
    1,538,793.40x = 1,587,033,628,703.88
  5. Step 5: Solve for x
    x = 1,587,033,628,703.88/1,538,793.40
  6. Step 6: Final answer
    x = 1,031,349.39

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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.