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Finding the Fourth Proportional to 503,882.37, 695,363.54 and 289,042.43

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Solution

The fourth proportional to 503,882.37, 695,363.54 and 289,042.43 is: 398,881.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,882.37 : 695,363.54 = 289,042.43 : x
  2. Step 2: Convert to fraction form
    503,882.37/695,363.54 = 289,042.43/x
  3. Step 3: Cross multiply
    503,882.37x = 695,363.54 × 289,042.43
  4. Step 4: Simplify right side
    503,882.37x = 200,989,562,412.97
  5. Step 5: Solve for x
    x = 200,989,562,412.97/503,882.37
  6. Step 6: Final answer
    x = 398,881.91

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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.