Home / 920,759.88-1,381,136.58-414,728.04

Finding the Fourth Proportional to 920,759.88, 1,381,136.58 and 414,728.04

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Solution

The fourth proportional to 920,759.88, 1,381,136.58 and 414,728.04 is: 622,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,759.88 : 1,381,136.58 = 414,728.04 : x
  2. Step 2: Convert to fraction form
    920,759.88/1,381,136.58 = 414,728.04/x
  3. Step 3: Cross multiply
    920,759.88x = 1,381,136.58 × 414,728.04
  4. Step 4: Simplify right side
    920,759.88x = 572,796,066,795.70
  5. Step 5: Solve for x
    x = 572,796,066,795.70/920,759.88
  6. Step 6: Final answer
    x = 622,090.60

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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.