Home / 2,189,781.60-3,282,436.80-1,479,881.40

Finding the Fourth Proportional to 2,189,781.60, 3,282,436.80 and 1,479,881.40

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Solution

The fourth proportional to 2,189,781.60, 3,282,436.80 and 1,479,881.40 is: 2,218,311.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,781.60 : 3,282,436.80 = 1,479,881.40 : x
  2. Step 2: Convert to fraction form
    2,189,781.60/3,282,436.80 = 1,479,881.40/x
  3. Step 3: Cross multiply
    2,189,781.60x = 3,282,436.80 × 1,479,881.40
  4. Step 4: Simplify right side
    2,189,781.60x = 4,857,617,166,995.52
  5. Step 5: Solve for x
    x = 4,857,617,166,995.52/2,189,781.60
  6. Step 6: Final answer
    x = 2,218,311.25

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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.