Home / 686,468.80-1,029,703.20-371,540.80

Finding the Fourth Proportional to 686,468.80, 1,029,703.20 and 371,540.80

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Solution

The fourth proportional to 686,468.80, 1,029,703.20 and 371,540.80 is: 557,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,468.80 : 1,029,703.20 = 371,540.80 : x
  2. Step 2: Convert to fraction form
    686,468.80/1,029,703.20 = 371,540.80/x
  3. Step 3: Cross multiply
    686,468.80x = 1,029,703.20 × 371,540.80
  4. Step 4: Simplify right side
    686,468.80x = 382,576,750,690.56
  5. Step 5: Solve for x
    x = 382,576,750,690.56/686,468.80
  6. Step 6: Final answer
    x = 557,311.20

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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.