Home / 2,172,920.40-3,258,797.40-910,486.80

Finding the Fourth Proportional to 2,172,920.40, 3,258,797.40 and 910,486.80

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Solution

The fourth proportional to 2,172,920.40, 3,258,797.40 and 910,486.80 is: 1,365,485.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,920.40 : 3,258,797.40 = 910,486.80 : x
  2. Step 2: Convert to fraction form
    2,172,920.40/3,258,797.40 = 910,486.80/x
  3. Step 3: Cross multiply
    2,172,920.40x = 3,258,797.40 × 910,486.80
  4. Step 4: Simplify right side
    2,172,920.40x = 2,967,092,016,574.32
  5. Step 5: Solve for x
    x = 2,967,092,016,574.32/2,172,920.40
  6. Step 6: Final answer
    x = 1,365,485.83

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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.