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Finding the Fourth Proportional to 605,076.99, 907,607.18 and 205,996.07

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Solution

The fourth proportional to 605,076.99, 907,607.18 and 205,996.07 is: 308,991.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,076.99 : 907,607.18 = 205,996.07 : x
  2. Step 2: Convert to fraction form
    605,076.99/907,607.18 = 205,996.07/x
  3. Step 3: Cross multiply
    605,076.99x = 907,607.18 × 205,996.07
  4. Step 4: Simplify right side
    605,076.99x = 186,963,506,615.77
  5. Step 5: Solve for x
    x = 186,963,506,615.77/605,076.99
  6. Step 6: Final answer
    x = 308,991.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.