Home / 1,115,321.40-1,539,149.04-656,453.16

Finding the Fourth Proportional to 1,115,321.40, 1,539,149.04 and 656,453.16

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Solution

The fourth proportional to 1,115,321.40, 1,539,149.04 and 656,453.16 is: 905,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,321.40 : 1,539,149.04 = 656,453.16 : x
  2. Step 2: Convert to fraction form
    1,115,321.40/1,539,149.04 = 656,453.16/x
  3. Step 3: Cross multiply
    1,115,321.40x = 1,539,149.04 × 656,453.16
  4. Step 4: Simplify right side
    1,115,321.40x = 1,010,379,251,018.97
  5. Step 5: Solve for x
    x = 1,010,379,251,018.97/1,115,321.40
  6. Step 6: Final answer
    x = 905,908.60

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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.