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Finding the Fourth Proportional to 1,235,057, 1,704,378.66 and 669,809

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Solution

The fourth proportional to 1,235,057, 1,704,378.66 and 669,809 is: 924,336.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,057 : 1,704,378.66 = 669,809 : x
  2. Step 2: Convert to fraction form
    1,235,057/1,704,378.66 = 669,809/x
  3. Step 3: Cross multiply
    1,235,057x = 1,704,378.66 × 669,809
  4. Step 4: Simplify right side
    1,235,057x = 1,141,608,165,875.94
  5. Step 5: Solve for x
    x = 1,141,608,165,875.94/1,235,057
  6. Step 6: Final answer
    x = 924,336.42

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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.