Home / 672,136.20-1,007,426.70-272,579.40

Finding the Fourth Proportional to 672,136.20, 1,007,426.70 and 272,579.40

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Solution

The fourth proportional to 672,136.20, 1,007,426.70 and 272,579.40 is: 408,553.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,136.20 : 1,007,426.70 = 272,579.40 : x
  2. Step 2: Convert to fraction form
    672,136.20/1,007,426.70 = 272,579.40/x
  3. Step 3: Cross multiply
    672,136.20x = 1,007,426.70 × 272,579.40
  4. Step 4: Simplify right side
    672,136.20x = 274,603,765,429.98
  5. Step 5: Solve for x
    x = 274,603,765,429.98/672,136.20
  6. Step 6: Final answer
    x = 408,553.75

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1.5x scale

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.