Home / 445,742.28-668,613.36-209,084.96

Finding the Fourth Proportional to 445,742.28, 668,613.36 and 209,084.96

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Solution

The fourth proportional to 445,742.28, 668,613.36 and 209,084.96 is: 313,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,742.28 : 668,613.36 = 209,084.96 : x
  2. Step 2: Convert to fraction form
    445,742.28/668,613.36 = 209,084.96/x
  3. Step 3: Cross multiply
    445,742.28x = 668,613.36 × 209,084.96
  4. Step 4: Simplify right side
    445,742.28x = 139,796,997,631.07
  5. Step 5: Solve for x
    x = 139,796,997,631.07/445,742.28
  6. Step 6: Final answer
    x = 313,627.41

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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.