Home / 809,893.16-1,215,065.02-354,403.24

Finding the Fourth Proportional to 809,893.16, 1,215,065.02 and 354,403.24

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Solution

The fourth proportional to 809,893.16, 1,215,065.02 and 354,403.24 is: 531,703.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,893.16 : 1,215,065.02 = 354,403.24 : x
  2. Step 2: Convert to fraction form
    809,893.16/1,215,065.02 = 354,403.24/x
  3. Step 3: Cross multiply
    809,893.16x = 1,215,065.02 × 354,403.24
  4. Step 4: Simplify right side
    809,893.16x = 430,622,979,898.67
  5. Step 5: Solve for x
    x = 430,622,979,898.67/809,893.16
  6. Step 6: Final answer
    x = 531,703.44

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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.