Home / 1,138,228.20-1,707,342.30-1,072,909.80

Finding the Fourth Proportional to 1,138,228.20, 1,707,342.30 and 1,072,909.80

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Solution

The fourth proportional to 1,138,228.20, 1,707,342.30 and 1,072,909.80 is: 1,609,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,228.20 : 1,707,342.30 = 1,072,909.80 : x
  2. Step 2: Convert to fraction form
    1,138,228.20/1,707,342.30 = 1,072,909.80/x
  3. Step 3: Cross multiply
    1,138,228.20x = 1,707,342.30 × 1,072,909.80
  4. Step 4: Simplify right side
    1,138,228.20x = 1,831,824,285,624.54
  5. Step 5: Solve for x
    x = 1,831,824,285,624.54/1,138,228.20
  6. Step 6: Final answer
    x = 1,609,364.70

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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.