Home / 1,138,095.81-1,570,604.09-628,831.17

Finding the Fourth Proportional to 1,138,095.81, 1,570,604.09 and 628,831.17

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Solution

The fourth proportional to 1,138,095.81, 1,570,604.09 and 628,831.17 is: 867,804.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,095.81 : 1,570,604.09 = 628,831.17 : x
  2. Step 2: Convert to fraction form
    1,138,095.81/1,570,604.09 = 628,831.17/x
  3. Step 3: Cross multiply
    1,138,095.81x = 1,570,604.09 × 628,831.17
  4. Step 4: Simplify right side
    1,138,095.81x = 987,644,804,377.33
  5. Step 5: Solve for x
    x = 987,644,804,377.33/1,138,095.81
  6. Step 6: Final answer
    x = 867,804.62

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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.