Home / 1,275,451.75-1,913,287.78-328,814.47

Finding the Fourth Proportional to 1,275,451.75, 1,913,287.78 and 328,814.47

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Solution

The fourth proportional to 1,275,451.75, 1,913,287.78 and 328,814.47 is: 493,250.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,451.75 : 1,913,287.78 = 328,814.47 : x
  2. Step 2: Convert to fraction form
    1,275,451.75/1,913,287.78 = 328,814.47/x
  3. Step 3: Cross multiply
    1,275,451.75x = 1,913,287.78 × 328,814.47
  4. Step 4: Simplify right side
    1,275,451.75x = 629,116,707,338.18
  5. Step 5: Solve for x
    x = 629,116,707,338.18/1,275,451.75
  6. Step 6: Final answer
    x = 493,250.10

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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.