Home / 999,891.57-1,379,844.47-570,162.48

Finding the Fourth Proportional to 999,891.57, 1,379,844.47 and 570,162.48

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Solution

The fourth proportional to 999,891.57, 1,379,844.47 and 570,162.48 is: 786,820.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,891.57 : 1,379,844.47 = 570,162.48 : x
  2. Step 2: Convert to fraction form
    999,891.57/1,379,844.47 = 570,162.48/x
  3. Step 3: Cross multiply
    999,891.57x = 1,379,844.47 × 570,162.48
  4. Step 4: Simplify right side
    999,891.57x = 786,735,538,073.31
  5. Step 5: Solve for x
    x = 786,735,538,073.31/999,891.57
  6. Step 6: Final answer
    x = 786,820.85

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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.