Home / 735,321.90-1,101,816.45-485,712.30

Finding the Fourth Proportional to 735,321.90, 1,101,816.45 and 485,712.30

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Solution

The fourth proportional to 735,321.90, 1,101,816.45 and 485,712.30 is: 727,797.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,321.90 : 1,101,816.45 = 485,712.30 : x
  2. Step 2: Convert to fraction form
    735,321.90/1,101,816.45 = 485,712.30/x
  3. Step 3: Cross multiply
    735,321.90x = 1,101,816.45 × 485,712.30
  4. Step 4: Simplify right side
    735,321.90x = 535,165,802,107.34
  5. Step 5: Solve for x
    x = 535,165,802,107.34/735,321.90
  6. Step 6: Final answer
    x = 727,797.99

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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.