Home / 1,303,712.20-1,955,568.30-1,209,233.80

Finding the Fourth Proportional to 1,303,712.20, 1,955,568.30 and 1,209,233.80

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Solution

The fourth proportional to 1,303,712.20, 1,955,568.30 and 1,209,233.80 is: 1,813,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,712.20 : 1,955,568.30 = 1,209,233.80 : x
  2. Step 2: Convert to fraction form
    1,303,712.20/1,955,568.30 = 1,209,233.80/x
  3. Step 3: Cross multiply
    1,303,712.20x = 1,955,568.30 × 1,209,233.80
  4. Step 4: Simplify right side
    1,303,712.20x = 2,364,739,286,568.54
  5. Step 5: Solve for x
    x = 2,364,739,286,568.54/1,303,712.20
  6. Step 6: Final answer
    x = 1,813,850.70

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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.