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Finding the Fourth Proportional to 666,973.03, 999,898.89 and 540,299.15

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Solution

The fourth proportional to 666,973.03, 999,898.89 and 540,299.15 is: 809,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,973.03 : 999,898.89 = 540,299.15 : x
  2. Step 2: Convert to fraction form
    666,973.03/999,898.89 = 540,299.15/x
  3. Step 3: Cross multiply
    666,973.03x = 999,898.89 × 540,299.15
  4. Step 4: Simplify right side
    666,973.03x = 540,244,520,352.94
  5. Step 5: Solve for x
    x = 540,244,520,352.94/666,973.03
  6. Step 6: Final answer
    x = 809,994.55

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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.