Home / 767,361.25-1,151,146.93-261,786.49

Finding the Fourth Proportional to 767,361.25, 1,151,146.93 and 261,786.49

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Solution

The fourth proportional to 767,361.25, 1,151,146.93 and 261,786.49 is: 392,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,361.25 : 1,151,146.93 = 261,786.49 : x
  2. Step 2: Convert to fraction form
    767,361.25/1,151,146.93 = 261,786.49/x
  3. Step 3: Cross multiply
    767,361.25x = 1,151,146.93 × 261,786.49
  4. Step 4: Simplify right side
    767,361.25x = 301,354,712,970.04
  5. Step 5: Solve for x
    x = 301,354,712,970.04/767,361.25
  6. Step 6: Final answer
    x = 392,715.57

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Half scale
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Double scale
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Similar ratio
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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.