Home / 757,839.51-1,136,760.63-505,612.80

Finding the Fourth Proportional to 757,839.51, 1,136,760.63 and 505,612.80

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Solution

The fourth proportional to 757,839.51, 1,136,760.63 and 505,612.80 is: 758,420.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,839.51 : 1,136,760.63 = 505,612.80 : x
  2. Step 2: Convert to fraction form
    757,839.51/1,136,760.63 = 505,612.80/x
  3. Step 3: Cross multiply
    757,839.51x = 1,136,760.63 × 505,612.80
  4. Step 4: Simplify right side
    757,839.51x = 574,760,725,064.06
  5. Step 5: Solve for x
    x = 574,760,725,064.06/757,839.51
  6. Step 6: Final answer
    x = 758,420.11

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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.