Home / 1,206,420.60-1,809,891.27-407,684.46

Finding the Fourth Proportional to 1,206,420.60, 1,809,891.27 and 407,684.46

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Solution

The fourth proportional to 1,206,420.60, 1,809,891.27 and 407,684.46 is: 611,614.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,420.60 : 1,809,891.27 = 407,684.46 : x
  2. Step 2: Convert to fraction form
    1,206,420.60/1,809,891.27 = 407,684.46/x
  3. Step 3: Cross multiply
    1,206,420.60x = 1,809,891.27 × 407,684.46
  4. Step 4: Simplify right side
    1,206,420.60x = 737,864,545,068.66
  5. Step 5: Solve for x
    x = 737,864,545,068.66/1,206,420.60
  6. Step 6: Final answer
    x = 611,614.68

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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.