Home / 1,155,218.85-1,594,194.86-638,963.49

Finding the Fourth Proportional to 1,155,218.85, 1,594,194.86 and 638,963.49

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Solution

The fourth proportional to 1,155,218.85, 1,594,194.86 and 638,963.49 is: 881,765.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,218.85 : 1,594,194.86 = 638,963.49 : x
  2. Step 2: Convert to fraction form
    1,155,218.85/1,594,194.86 = 638,963.49/x
  3. Step 3: Cross multiply
    1,155,218.85x = 1,594,194.86 × 638,963.49
  4. Step 4: Simplify right side
    1,155,218.85x = 1,018,632,305,601.27
  5. Step 5: Solve for x
    x = 1,018,632,305,601.27/1,155,218.85
  6. Step 6: Final answer
    x = 881,765.66

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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.