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Finding the Fourth Proportional to 540,358.68, 809,873.60 and 303,203.10

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Solution

The fourth proportional to 540,358.68, 809,873.60 and 303,203.10 is: 454,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,358.68 : 809,873.60 = 303,203.10 : x
  2. Step 2: Convert to fraction form
    540,358.68/809,873.60 = 303,203.10/x
  3. Step 3: Cross multiply
    540,358.68x = 809,873.60 × 303,203.10
  4. Step 4: Simplify right side
    540,358.68x = 245,556,186,128.16
  5. Step 5: Solve for x
    x = 245,556,186,128.16/540,358.68
  6. Step 6: Final answer
    x = 454,431.83

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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.