Home / 999,969.32-1,379,923.62-570,388.52

Finding the Fourth Proportional to 999,969.32, 1,379,923.62 and 570,388.52

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Solution

The fourth proportional to 999,969.32, 1,379,923.62 and 570,388.52 is: 787,116.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,969.32 : 1,379,923.62 = 570,388.52 : x
  2. Step 2: Convert to fraction form
    999,969.32/1,379,923.62 = 570,388.52/x
  3. Step 3: Cross multiply
    999,969.32x = 1,379,923.62 × 570,388.52
  4. Step 4: Simplify right side
    999,969.32x = 787,092,591,324.84
  5. Step 5: Solve for x
    x = 787,092,591,324.84/999,969.32
  6. Step 6: Final answer
    x = 787,116.74

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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.