Home / 1,256,057.72-1,887,893.04-831,043.16

Finding the Fourth Proportional to 1,256,057.72, 1,887,893.04 and 831,043.16

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Solution

The fourth proportional to 1,256,057.72, 1,887,893.04 and 831,043.16 is: 1,249,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,057.72 : 1,887,893.04 = 831,043.16 : x
  2. Step 2: Convert to fraction form
    1,256,057.72/1,887,893.04 = 831,043.16/x
  3. Step 3: Cross multiply
    1,256,057.72x = 1,887,893.04 × 831,043.16
  4. Step 4: Simplify right side
    1,256,057.72x = 1,568,920,597,703.61
  5. Step 5: Solve for x
    x = 1,568,920,597,703.61/1,256,057.72
  6. Step 6: Final answer
    x = 1,249,083.20

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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.