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Finding the Fourth Proportional to 611,775.91, 844,227.28 and 339,860.91

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Solution

The fourth proportional to 611,775.91, 844,227.28 and 339,860.91 is: 468,995.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,775.91 : 844,227.28 = 339,860.91 : x
  2. Step 2: Convert to fraction form
    611,775.91/844,227.28 = 339,860.91/x
  3. Step 3: Cross multiply
    611,775.91x = 844,227.28 × 339,860.91
  4. Step 4: Simplify right side
    611,775.91x = 286,919,851,627.63
  5. Step 5: Solve for x
    x = 286,919,851,627.63/611,775.91
  6. Step 6: Final answer
    x = 468,995.01

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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.