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Finding the Fourth Proportional to 539,892.45, 810,002.70 and 303,076.80

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Solution

The fourth proportional to 539,892.45, 810,002.70 and 303,076.80 is: 454,707.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,892.45 : 810,002.70 = 303,076.80 : x
  2. Step 2: Convert to fraction form
    539,892.45/810,002.70 = 303,076.80/x
  3. Step 3: Cross multiply
    539,892.45x = 810,002.70 × 303,076.80
  4. Step 4: Simplify right side
    539,892.45x = 245,493,026,307.36
  5. Step 5: Solve for x
    x = 245,493,026,307.36/539,892.45
  6. Step 6: Final answer
    x = 454,707.28

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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.