Home / 3,118,119.75-4,303,018.35-1,687,335.75

Finding the Fourth Proportional to 3,118,119.75, 4,303,018.35 and 1,687,335.75

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Solution

The fourth proportional to 3,118,119.75, 4,303,018.35 and 1,687,335.75 is: 2,328,530.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,119.75 : 4,303,018.35 = 1,687,335.75 : x
  2. Step 2: Convert to fraction form
    3,118,119.75/4,303,018.35 = 1,687,335.75/x
  3. Step 3: Cross multiply
    3,118,119.75x = 4,303,018.35 × 1,687,335.75
  4. Step 4: Simplify right side
    3,118,119.75x = 7,260,636,694,861.01
  5. Step 5: Solve for x
    x = 7,260,636,694,861.01/3,118,119.75
  6. Step 6: Final answer
    x = 2,328,530.42

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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.