Home / 1,382,262.86-1,907,531.60-770,454.47

Finding the Fourth Proportional to 1,382,262.86, 1,907,531.60 and 770,454.47

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Solution

The fourth proportional to 1,382,262.86, 1,907,531.60 and 770,454.47 is: 1,063,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,262.86 : 1,907,531.60 = 770,454.47 : x
  2. Step 2: Convert to fraction form
    1,382,262.86/1,907,531.60 = 770,454.47/x
  3. Step 3: Cross multiply
    1,382,262.86x = 1,907,531.60 × 770,454.47
  4. Step 4: Simplify right side
    1,382,262.86x = 1,469,666,234,496.32
  5. Step 5: Solve for x
    x = 1,469,666,234,496.32/1,382,262.86
  6. Step 6: Final answer
    x = 1,063,232.10

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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.