Home / 1,916,428.60-2,872,799.70-1,489,727.80

Finding the Fourth Proportional to 1,916,428.60, 2,872,799.70 and 1,489,727.80

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Solution

The fourth proportional to 1,916,428.60, 2,872,799.70 and 1,489,727.80 is: 2,233,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,428.60 : 2,872,799.70 = 1,489,727.80 : x
  2. Step 2: Convert to fraction form
    1,916,428.60/2,872,799.70 = 1,489,727.80/x
  3. Step 3: Cross multiply
    1,916,428.60x = 2,872,799.70 × 1,489,727.80
  4. Step 4: Simplify right side
    1,916,428.60x = 4,279,689,576,921.66
  5. Step 5: Solve for x
    x = 4,279,689,576,921.66/1,916,428.60
  6. Step 6: Final answer
    x = 2,233,158.90

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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.