Home / 1,419,136.60-2,129,288.10-521,008.60

Finding the Fourth Proportional to 1,419,136.60, 2,129,288.10 and 521,008.60

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Solution

The fourth proportional to 1,419,136.60, 2,129,288.10 and 521,008.60 is: 781,727.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,136.60 : 2,129,288.10 = 521,008.60 : x
  2. Step 2: Convert to fraction form
    1,419,136.60/2,129,288.10 = 521,008.60/x
  3. Step 3: Cross multiply
    1,419,136.60x = 2,129,288.10 × 521,008.60
  4. Step 4: Simplify right side
    1,419,136.60x = 1,109,377,411,977.66
  5. Step 5: Solve for x
    x = 1,109,377,411,977.66/1,419,136.60
  6. Step 6: Final answer
    x = 781,727.01

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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.