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Finding the Fourth Proportional to 400,570.74, 552,198.69 and 304,910.82

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Solution

The fourth proportional to 400,570.74, 552,198.69 and 304,910.82 is: 420,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,570.74 : 552,198.69 = 304,910.82 : x
  2. Step 2: Convert to fraction form
    400,570.74/552,198.69 = 304,910.82/x
  3. Step 3: Cross multiply
    400,570.74x = 552,198.69 × 304,910.82
  4. Step 4: Simplify right side
    400,570.74x = 168,371,355,370.83
  5. Step 5: Solve for x
    x = 168,371,355,370.83/400,570.74
  6. Step 6: Final answer
    x = 420,328.64

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1.5x scale

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.