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Finding the Fourth Proportional to 702,753.61, 1,053,457 and 297,388.20

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Solution

The fourth proportional to 702,753.61, 1,053,457 and 297,388.20 is: 445,797.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,753.61 : 1,053,457 = 297,388.20 : x
  2. Step 2: Convert to fraction form
    702,753.61/1,053,457 = 297,388.20/x
  3. Step 3: Cross multiply
    702,753.61x = 1,053,457 × 297,388.20
  4. Step 4: Simplify right side
    702,753.61x = 313,285,681,007.40
  5. Step 5: Solve for x
    x = 313,285,681,007.40/702,753.61
  6. Step 6: Final answer
    x = 445,797.33

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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.