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Finding the Fourth Proportional to 695,355.48, 959,426.10 and 393,549.48

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Solution

The fourth proportional to 695,355.48, 959,426.10 and 393,549.48 is: 543,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,355.48 : 959,426.10 = 393,549.48 : x
  2. Step 2: Convert to fraction form
    695,355.48/959,426.10 = 393,549.48/x
  3. Step 3: Cross multiply
    695,355.48x = 959,426.10 × 393,549.48
  4. Step 4: Simplify right side
    695,355.48x = 377,581,642,753.43
  5. Step 5: Solve for x
    x = 377,581,642,753.43/695,355.48
  6. Step 6: Final answer
    x = 543,005.20

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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.