Home / 920,136.80-1,269,757.68-517,651.04

Finding the Fourth Proportional to 920,136.80, 1,269,757.68 and 517,651.04

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Solution

The fourth proportional to 920,136.80, 1,269,757.68 and 517,651.04 is: 714,340.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,136.80 : 1,269,757.68 = 517,651.04 : x
  2. Step 2: Convert to fraction form
    920,136.80/1,269,757.68 = 517,651.04/x
  3. Step 3: Cross multiply
    920,136.80x = 1,269,757.68 × 517,651.04
  4. Step 4: Simplify right side
    920,136.80x = 657,291,383,599.99
  5. Step 5: Solve for x
    x = 657,291,383,599.99/920,136.80
  6. Step 6: Final answer
    x = 714,340.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.