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Finding the Fourth Proportional to 406,425.96, 560,887.94 and 245,278.44

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Solution

The fourth proportional to 406,425.96, 560,887.94 and 245,278.44 is: 338,496.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,425.96 : 560,887.94 = 245,278.44 : x
  2. Step 2: Convert to fraction form
    406,425.96/560,887.94 = 245,278.44/x
  3. Step 3: Cross multiply
    406,425.96x = 560,887.94 × 245,278.44
  4. Step 4: Simplify right side
    406,425.96x = 137,573,718,938.01
  5. Step 5: Solve for x
    x = 137,573,718,938.01/406,425.96
  6. Step 6: Final answer
    x = 338,496.39

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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.