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Finding the Fourth Proportional to 540,342.36, 809,849.25 and 303,186.83

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Solution

The fourth proportional to 540,342.36, 809,849.25 and 303,186.83 is: 454,407.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,342.36 : 809,849.25 = 303,186.83 : x
  2. Step 2: Convert to fraction form
    540,342.36/809,849.25 = 303,186.83/x
  3. Step 3: Cross multiply
    540,342.36x = 809,849.25 × 303,186.83
  4. Step 4: Simplify right side
    540,342.36x = 245,535,622,836.13
  5. Step 5: Solve for x
    x = 245,535,622,836.13/540,342.36
  6. Step 6: Final answer
    x = 454,407.50

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1.5x scale

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.