Home / 1,270,988.86-1,906,482.20-324,359.68

Finding the Fourth Proportional to 1,270,988.86, 1,906,482.20 and 324,359.68

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Solution

The fourth proportional to 1,270,988.86, 1,906,482.20 and 324,359.68 is: 486,539.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,988.86 : 1,906,482.20 = 324,359.68 : x
  2. Step 2: Convert to fraction form
    1,270,988.86/1,906,482.20 = 324,359.68/x
  3. Step 3: Cross multiply
    1,270,988.86x = 1,906,482.20 × 324,359.68
  4. Step 4: Simplify right side
    1,270,988.86x = 618,385,956,317.70
  5. Step 5: Solve for x
    x = 618,385,956,317.70/1,270,988.86
  6. Step 6: Final answer
    x = 486,539.24

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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.