Home / 1,885,145.60-2,825,644.80-820,006.40

Finding the Fourth Proportional to 1,885,145.60, 2,825,644.80 and 820,006.40

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Solution

The fourth proportional to 1,885,145.60, 2,825,644.80 and 820,006.40 is: 1,229,107.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885,145.60 : 2,825,644.80 = 820,006.40 : x
  2. Step 2: Convert to fraction form
    1,885,145.60/2,825,644.80 = 820,006.40/x
  3. Step 3: Cross multiply
    1,885,145.60x = 2,825,644.80 × 820,006.40
  4. Step 4: Simplify right side
    1,885,145.60x = 2,317,046,820,126.72
  5. Step 5: Solve for x
    x = 2,317,046,820,126.72/1,885,145.60
  6. Step 6: Final answer
    x = 1,229,107.62

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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.