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Finding the Fourth Proportional to 611,753.63, 844,243.70 and 339,842.16

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Solution

The fourth proportional to 611,753.63, 844,243.70 and 339,842.16 is: 468,995.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,753.63 : 844,243.70 = 339,842.16 : x
  2. Step 2: Convert to fraction form
    611,753.63/844,243.70 = 339,842.16/x
  3. Step 3: Cross multiply
    611,753.63x = 844,243.70 × 339,842.16
  4. Step 4: Simplify right side
    611,753.63x = 286,909,600,875.18
  5. Step 5: Solve for x
    x = 286,909,600,875.18/611,753.63
  6. Step 6: Final answer
    x = 468,995.34

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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.