Home / 1,820,507.40-2,728,136.70-808,801.20

Finding the Fourth Proportional to 1,820,507.40, 2,728,136.70 and 808,801.20

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Solution

The fourth proportional to 1,820,507.40, 2,728,136.70 and 808,801.20 is: 1,212,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,507.40 : 2,728,136.70 = 808,801.20 : x
  2. Step 2: Convert to fraction form
    1,820,507.40/2,728,136.70 = 808,801.20/x
  3. Step 3: Cross multiply
    1,820,507.40x = 2,728,136.70 × 808,801.20
  4. Step 4: Simplify right side
    1,820,507.40x = 2,206,520,236,724.04
  5. Step 5: Solve for x
    x = 2,206,520,236,724.04/1,820,507.40
  6. Step 6: Final answer
    x = 1,212,035.85

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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.