Home / 1,247,038.80-1,720,912.76-674,078.96

Finding the Fourth Proportional to 1,247,038.80, 1,720,912.76 and 674,078.96

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Solution

The fourth proportional to 1,247,038.80, 1,720,912.76 and 674,078.96 is: 930,228.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,038.80 : 1,720,912.76 = 674,078.96 : x
  2. Step 2: Convert to fraction form
    1,247,038.80/1,720,912.76 = 674,078.96/x
  3. Step 3: Cross multiply
    1,247,038.80x = 1,720,912.76 × 674,078.96
  4. Step 4: Simplify right side
    1,247,038.80x = 1,160,031,083,511.53
  5. Step 5: Solve for x
    x = 1,160,031,083,511.53/1,247,038.80
  6. Step 6: Final answer
    x = 930,228.54

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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.