Home / 1,275,470.40-1,913,315.73-328,833.12

Finding the Fourth Proportional to 1,275,470.40, 1,913,315.73 and 328,833.12

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Solution

The fourth proportional to 1,275,470.40, 1,913,315.73 and 328,833.12 is: 493,278.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,470.40 : 1,913,315.73 = 328,833.12 : x
  2. Step 2: Convert to fraction form
    1,275,470.40/1,913,315.73 = 328,833.12/x
  3. Step 3: Cross multiply
    1,275,470.40x = 1,913,315.73 × 328,833.12
  4. Step 4: Simplify right side
    1,275,470.40x = 629,161,581,040.98
  5. Step 5: Solve for x
    x = 629,161,581,040.98/1,275,470.40
  6. Step 6: Final answer
    x = 493,278.07

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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.