Home / 1,531,719.89-2,297,578.75-689,287.49

Finding the Fourth Proportional to 1,531,719.89, 2,297,578.75 and 689,287.49

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Solution

The fourth proportional to 1,531,719.89, 2,297,578.75 and 689,287.49 is: 1,033,930.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,719.89 : 2,297,578.75 = 689,287.49 : x
  2. Step 2: Convert to fraction form
    1,531,719.89/2,297,578.75 = 689,287.49/x
  3. Step 3: Cross multiply
    1,531,719.89x = 2,297,578.75 × 689,287.49
  4. Step 4: Simplify right side
    1,531,719.89x = 1,583,692,276,453.73
  5. Step 5: Solve for x
    x = 1,583,692,276,453.73/1,531,719.89
  6. Step 6: Final answer
    x = 1,033,930.74

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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.