Home / 865,860.71-1,297,371.23-611,900.81

Finding the Fourth Proportional to 865,860.71, 1,297,371.23 and 611,900.81

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Solution

The fourth proportional to 865,860.71, 1,297,371.23 and 611,900.81 is: 916,847.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,860.71 : 1,297,371.23 = 611,900.81 : x
  2. Step 2: Convert to fraction form
    865,860.71/1,297,371.23 = 611,900.81/x
  3. Step 3: Cross multiply
    865,860.71x = 1,297,371.23 × 611,900.81
  4. Step 4: Simplify right side
    865,860.71x = 793,862,500,472.25
  5. Step 5: Solve for x
    x = 793,862,500,472.25/865,860.71
  6. Step 6: Final answer
    x = 916,847.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.