Home / 1,275,449.75-1,913,284.78-328,812.47

Finding the Fourth Proportional to 1,275,449.75, 1,913,284.78 and 328,812.47

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Solution

The fourth proportional to 1,275,449.75, 1,913,284.78 and 328,812.47 is: 493,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,449.75 : 1,913,284.78 = 328,812.47 : x
  2. Step 2: Convert to fraction form
    1,275,449.75/1,913,284.78 = 328,812.47/x
  3. Step 3: Cross multiply
    1,275,449.75x = 1,913,284.78 × 328,812.47
  4. Step 4: Simplify right side
    1,275,449.75x = 629,111,883,936.75
  5. Step 5: Solve for x
    x = 629,111,883,936.75/1,275,449.75
  6. Step 6: Final answer
    x = 493,247.10

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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.