Home / 1,101,812.72-1,520,649.93-618,404.31

Finding the Fourth Proportional to 1,101,812.72, 1,520,649.93 and 618,404.31

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Solution

The fourth proportional to 1,101,812.72, 1,520,649.93 and 618,404.31 is: 853,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,812.72 : 1,520,649.93 = 618,404.31 : x
  2. Step 2: Convert to fraction form
    1,101,812.72/1,520,649.93 = 618,404.31/x
  3. Step 3: Cross multiply
    1,101,812.72x = 1,520,649.93 × 618,404.31
  4. Step 4: Simplify right side
    1,101,812.72x = 940,376,470,713.20
  5. Step 5: Solve for x
    x = 940,376,470,713.20/1,101,812.72
  6. Step 6: Final answer
    x = 853,481.23

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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.