Home / 1,388,820.90-2,083,397.76-490,077

Finding the Fourth Proportional to 1,388,820.90, 2,083,397.76 and 490,077

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Solution

The fourth proportional to 1,388,820.90, 2,083,397.76 and 490,077 is: 735,174.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,820.90 : 2,083,397.76 = 490,077 : x
  2. Step 2: Convert to fraction form
    1,388,820.90/2,083,397.76 = 490,077/x
  3. Step 3: Cross multiply
    1,388,820.90x = 2,083,397.76 × 490,077
  4. Step 4: Simplify right side
    1,388,820.90x = 1,021,025,324,027.52
  5. Step 5: Solve for x
    x = 1,021,025,324,027.52/1,388,820.90
  6. Step 6: Final answer
    x = 735,174.22

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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.