Home / 868,126.61-1,197,723.31-505,472.81

Finding the Fourth Proportional to 868,126.61, 1,197,723.31 and 505,472.81

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Solution

The fourth proportional to 868,126.61, 1,197,723.31 and 505,472.81 is: 697,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,126.61 : 1,197,723.31 = 505,472.81 : x
  2. Step 2: Convert to fraction form
    868,126.61/1,197,723.31 = 505,472.81/x
  3. Step 3: Cross multiply
    868,126.61x = 1,197,723.31 × 505,472.81
  4. Step 4: Simplify right side
    868,126.61x = 605,416,559,855.90
  5. Step 5: Solve for x
    x = 605,416,559,855.90/868,126.61
  6. Step 6: Final answer
    x = 697,382.79

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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.