Home / 1,339,136.70-2,008,510.65-392,408.70

Finding the Fourth Proportional to 1,339,136.70, 2,008,510.65 and 392,408.70

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Solution

The fourth proportional to 1,339,136.70, 2,008,510.65 and 392,408.70 is: 588,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,136.70 : 2,008,510.65 = 392,408.70 : x
  2. Step 2: Convert to fraction form
    1,339,136.70/2,008,510.65 = 392,408.70/x
  3. Step 3: Cross multiply
    1,339,136.70x = 2,008,510.65 × 392,408.70
  4. Step 4: Simplify right side
    1,339,136.70x = 788,157,053,102.66
  5. Step 5: Solve for x
    x = 788,157,053,102.66/1,339,136.70
  6. Step 6: Final answer
    x = 588,556.08

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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.