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Finding the Fourth Proportional to 886,437.72, 1,329,850.92 and 287,459.44

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Solution

The fourth proportional to 886,437.72, 1,329,850.92 and 287,459.44 is: 431,252.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,437.72 : 1,329,850.92 = 287,459.44 : x
  2. Step 2: Convert to fraction form
    886,437.72/1,329,850.92 = 287,459.44/x
  3. Step 3: Cross multiply
    886,437.72x = 1,329,850.92 × 287,459.44
  4. Step 4: Simplify right side
    886,437.72x = 382,278,200,746.69
  5. Step 5: Solve for x
    x = 382,278,200,746.69/886,437.72
  6. Step 6: Final answer
    x = 431,252.18

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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.