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Finding the Fourth Proportional to 659,922.78, 910,222.99 and 605,649.89

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Solution

The fourth proportional to 659,922.78, 910,222.99 and 605,649.89 is: 835,365.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,922.78 : 910,222.99 = 605,649.89 : x
  2. Step 2: Convert to fraction form
    659,922.78/910,222.99 = 605,649.89/x
  3. Step 3: Cross multiply
    659,922.78x = 910,222.99 × 605,649.89
  4. Step 4: Simplify right side
    659,922.78x = 551,276,452,254.85
  5. Step 5: Solve for x
    x = 551,276,452,254.85/659,922.78
  6. Step 6: Final answer
    x = 835,365.09

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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.