Home / 1,043.03-1,439.29-623.30

Finding the Fourth Proportional to 1,043.03, 1,439.29 and 623.30

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Solution

The fourth proportional to 1,043.03, 1,439.29 and 623.30 is: 860.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.03 : 1,439.29 = 623.30 : x
  2. Step 2: Convert to fraction form
    1,043.03/1,439.29 = 623.30/x
  3. Step 3: Cross multiply
    1,043.03x = 1,439.29 × 623.30
  4. Step 4: Simplify right side
    1,043.03x = 897,110.73
  5. Step 5: Solve for x
    x = 897,110.73/1,043.03
  6. Step 6: Final answer
    x = 860.10

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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.