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Finding the Fourth Proportional to 414,057.69, 620,901.99 and 288,504.72

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Solution

The fourth proportional to 414,057.69, 620,901.99 and 288,504.72 is: 432,628.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,057.69 : 620,901.99 = 288,504.72 : x
  2. Step 2: Convert to fraction form
    414,057.69/620,901.99 = 288,504.72/x
  3. Step 3: Cross multiply
    414,057.69x = 620,901.99 × 288,504.72
  4. Step 4: Simplify right side
    414,057.69x = 179,133,154,772.39
  5. Step 5: Solve for x
    x = 179,133,154,772.39/414,057.69
  6. Step 6: Final answer
    x = 432,628.49

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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.