Home / 887,708.76-1,224,738.21-505,464.90

Finding the Fourth Proportional to 887,708.76, 1,224,738.21 and 505,464.90

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Solution

The fourth proportional to 887,708.76, 1,224,738.21 and 505,464.90 is: 697,370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,708.76 : 1,224,738.21 = 505,464.90 : x
  2. Step 2: Convert to fraction form
    887,708.76/1,224,738.21 = 505,464.90/x
  3. Step 3: Cross multiply
    887,708.76x = 1,224,738.21 × 505,464.90
  4. Step 4: Simplify right side
    887,708.76x = 619,062,176,843.83
  5. Step 5: Solve for x
    x = 619,062,176,843.83/887,708.76
  6. Step 6: Final answer
    x = 697,370.81

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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.