Home / 1,137,940.38-1,570,223.83-628,612.38

Finding the Fourth Proportional to 1,137,940.38, 1,570,223.83 and 628,612.38

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Solution

The fourth proportional to 1,137,940.38, 1,570,223.83 and 628,612.38 is: 867,411.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,940.38 : 1,570,223.83 = 628,612.38 : x
  2. Step 2: Convert to fraction form
    1,137,940.38/1,570,223.83 = 628,612.38/x
  3. Step 3: Cross multiply
    1,137,940.38x = 1,570,223.83 × 628,612.38
  4. Step 4: Simplify right side
    1,137,940.38x = 987,062,138,909.02
  5. Step 5: Solve for x
    x = 987,062,138,909.02/1,137,940.38
  6. Step 6: Final answer
    x = 867,411.12

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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.