Home / 1,380,385.70-2,070,689.26-481,807.54

Finding the Fourth Proportional to 1,380,385.70, 2,070,689.26 and 481,807.54

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Solution

The fourth proportional to 1,380,385.70, 2,070,689.26 and 481,807.54 is: 722,749.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,385.70 : 2,070,689.26 = 481,807.54 : x
  2. Step 2: Convert to fraction form
    1,380,385.70/2,070,689.26 = 481,807.54/x
  3. Step 3: Cross multiply
    1,380,385.70x = 2,070,689.26 × 481,807.54
  4. Step 4: Simplify right side
    1,380,385.70x = 997,673,685,702.54
  5. Step 5: Solve for x
    x = 997,673,685,702.54/1,380,385.70
  6. Step 6: Final answer
    x = 722,749.95

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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.