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Finding the Fourth Proportional to 406,805.44, 610,309.76 and 287,096.04

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Solution

The fourth proportional to 406,805.44, 610,309.76 and 287,096.04 is: 430,715.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,805.44 : 610,309.76 = 287,096.04 : x
  2. Step 2: Convert to fraction form
    406,805.44/610,309.76 = 287,096.04/x
  3. Step 3: Cross multiply
    406,805.44x = 610,309.76 × 287,096.04
  4. Step 4: Simplify right side
    406,805.44x = 175,217,515,269.35
  5. Step 5: Solve for x
    x = 175,217,515,269.35/406,805.44
  6. Step 6: Final answer
    x = 430,715.76

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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.