Home / 1,287,247.04-1,776,745.53-803,520.91

Finding the Fourth Proportional to 1,287,247.04, 1,776,745.53 and 803,520.91

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Solution

The fourth proportional to 1,287,247.04, 1,776,745.53 and 803,520.91 is: 1,109,073.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,247.04 : 1,776,745.53 = 803,520.91 : x
  2. Step 2: Convert to fraction form
    1,287,247.04/1,776,745.53 = 803,520.91/x
  3. Step 3: Cross multiply
    1,287,247.04x = 1,776,745.53 × 803,520.91
  4. Step 4: Simplify right side
    1,287,247.04x = 1,427,652,187,324.96
  5. Step 5: Solve for x
    x = 1,427,652,187,324.96/1,287,247.04
  6. Step 6: Final answer
    x = 1,109,073.97

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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.