Home / 1,586,622.76-2,189,542.98-861,470.44

Finding the Fourth Proportional to 1,586,622.76, 2,189,542.98 and 861,470.44

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Solution

The fourth proportional to 1,586,622.76, 2,189,542.98 and 861,470.44 is: 1,188,831.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,622.76 : 2,189,542.98 = 861,470.44 : x
  2. Step 2: Convert to fraction form
    1,586,622.76/2,189,542.98 = 861,470.44/x
  3. Step 3: Cross multiply
    1,586,622.76x = 2,189,542.98 × 861,470.44
  4. Step 4: Simplify right side
    1,586,622.76x = 1,886,226,554,379.51
  5. Step 5: Solve for x
    x = 1,886,226,554,379.51/1,586,622.76
  6. Step 6: Final answer
    x = 1,188,831.15

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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.