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Finding the Fourth Proportional to 611,838.25, 844,243.04 and 339,881.15

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Solution

The fourth proportional to 611,838.25, 844,243.04 and 339,881.15 is: 468,983.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,838.25 : 844,243.04 = 339,881.15 : x
  2. Step 2: Convert to fraction form
    611,838.25/844,243.04 = 339,881.15/x
  3. Step 3: Cross multiply
    611,838.25x = 844,243.04 × 339,881.15
  4. Step 4: Simplify right side
    611,838.25x = 286,942,298,275.01
  5. Step 5: Solve for x
    x = 286,942,298,275.01/611,838.25
  6. Step 6: Final answer
    x = 468,983.92

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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.