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Finding the Fourth Proportional to 406,069.77, 560,377.57 and 219,801.21

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Solution

The fourth proportional to 406,069.77, 560,377.57 and 219,801.21 is: 303,326.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,069.77 : 560,377.57 = 219,801.21 : x
  2. Step 2: Convert to fraction form
    406,069.77/560,377.57 = 219,801.21/x
  3. Step 3: Cross multiply
    406,069.77x = 560,377.57 × 219,801.21
  4. Step 4: Simplify right side
    406,069.77x = 123,171,666,843.85
  5. Step 5: Solve for x
    x = 123,171,666,843.85/406,069.77
  6. Step 6: Final answer
    x = 303,326.36

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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.