Home / 1,275,446.87-1,913,280.47-328,809.59

Finding the Fourth Proportional to 1,275,446.87, 1,913,280.47 and 328,809.59

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Solution

The fourth proportional to 1,275,446.87, 1,913,280.47 and 328,809.59 is: 493,242.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,446.87 : 1,913,280.47 = 328,809.59 : x
  2. Step 2: Convert to fraction form
    1,275,446.87/1,913,280.47 = 328,809.59/x
  3. Step 3: Cross multiply
    1,275,446.87x = 1,913,280.47 × 328,809.59
  4. Step 4: Simplify right side
    1,275,446.87x = 629,104,965,251.66
  5. Step 5: Solve for x
    x = 629,104,965,251.66/1,275,446.87
  6. Step 6: Final answer
    x = 493,242.78

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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.