Home / 1,618,084.30-2,428,681.65-820,266.70

Finding the Fourth Proportional to 1,618,084.30, 2,428,681.65 and 820,266.70

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Solution

The fourth proportional to 1,618,084.30, 2,428,681.65 and 820,266.70 is: 1,231,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,084.30 : 2,428,681.65 = 820,266.70 : x
  2. Step 2: Convert to fraction form
    1,618,084.30/2,428,681.65 = 820,266.70/x
  3. Step 3: Cross multiply
    1,618,084.30x = 2,428,681.65 × 820,266.70
  4. Step 4: Simplify right side
    1,618,084.30x = 1,992,166,682,396.06
  5. Step 5: Solve for x
    x = 1,992,166,682,396.06/1,618,084.30
  6. Step 6: Final answer
    x = 1,231,188.44

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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.