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Finding the Fourth Proportional to 695,805.60, 1,043,805.60 and 296,443.20

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Solution

The fourth proportional to 695,805.60, 1,043,805.60 and 296,443.20 is: 444,706.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,805.60 : 1,043,805.60 = 296,443.20 : x
  2. Step 2: Convert to fraction form
    695,805.60/1,043,805.60 = 296,443.20/x
  3. Step 3: Cross multiply
    695,805.60x = 1,043,805.60 × 296,443.20
  4. Step 4: Simplify right side
    695,805.60x = 309,429,072,241.92
  5. Step 5: Solve for x
    x = 309,429,072,241.92/695,805.60
  6. Step 6: Final answer
    x = 444,706.21

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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.