Home / 868,102.72-1,197,686.22-505,449.81

Finding the Fourth Proportional to 868,102.72, 1,197,686.22 and 505,449.81

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Solution

The fourth proportional to 868,102.72, 1,197,686.22 and 505,449.81 is: 697,348.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,102.72 : 1,197,686.22 = 505,449.81 : x
  2. Step 2: Convert to fraction form
    868,102.72/1,197,686.22 = 505,449.81/x
  3. Step 3: Cross multiply
    868,102.72x = 1,197,686.22 × 505,449.81
  4. Step 4: Simplify right side
    868,102.72x = 605,370,270,443.18
  5. Step 5: Solve for x
    x = 605,370,270,443.18/868,102.72
  6. Step 6: Final answer
    x = 697,348.66

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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.