Home / 1,256,307.66-1,883,745.45-857,431.26

Finding the Fourth Proportional to 1,256,307.66, 1,883,745.45 and 857,431.26

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Solution

The fourth proportional to 1,256,307.66, 1,883,745.45 and 857,431.26 is: 1,285,658.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,307.66 : 1,883,745.45 = 857,431.26 : x
  2. Step 2: Convert to fraction form
    1,256,307.66/1,883,745.45 = 857,431.26/x
  3. Step 3: Cross multiply
    1,256,307.66x = 1,883,745.45 × 857,431.26
  4. Step 4: Simplify right side
    1,256,307.66x = 1,615,182,234,712.77
  5. Step 5: Solve for x
    x = 1,615,182,234,712.77/1,256,307.66
  6. Step 6: Final answer
    x = 1,285,658.19

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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.