Home / 1,091,270.25-1,505,880.88-655,428.61

Finding the Fourth Proportional to 1,091,270.25, 1,505,880.88 and 655,428.61

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Solution

The fourth proportional to 1,091,270.25, 1,505,880.88 and 655,428.61 is: 904,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,270.25 : 1,505,880.88 = 655,428.61 : x
  2. Step 2: Convert to fraction form
    1,091,270.25/1,505,880.88 = 655,428.61/x
  3. Step 3: Cross multiply
    1,091,270.25x = 1,505,880.88 × 655,428.61
  4. Step 4: Simplify right side
    1,091,270.25x = 986,997,412,003.98
  5. Step 5: Solve for x
    x = 986,997,412,003.98/1,091,270.25
  6. Step 6: Final answer
    x = 904,448.20

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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.