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Finding the Fourth Proportional to 666,974.03, 999,900.39 and 540,300.16

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Solution

The fourth proportional to 666,974.03, 999,900.39 and 540,300.16 is: 809,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,974.03 : 999,900.39 = 540,300.16 : x
  2. Step 2: Convert to fraction form
    666,974.03/999,900.39 = 540,300.16/x
  3. Step 3: Cross multiply
    666,974.03x = 999,900.39 × 540,300.16
  4. Step 4: Simplify right side
    666,974.03x = 540,246,335,701.56
  5. Step 5: Solve for x
    x = 540,246,335,701.56/666,974.03
  6. Step 6: Final answer
    x = 809,996.06

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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.