Home / 856,837.70-1,285,256.55-657,772.10

Finding the Fourth Proportional to 856,837.70, 1,285,256.55 and 657,772.10

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Solution

The fourth proportional to 856,837.70, 1,285,256.55 and 657,772.10 is: 986,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,837.70 : 1,285,256.55 = 657,772.10 : x
  2. Step 2: Convert to fraction form
    856,837.70/1,285,256.55 = 657,772.10/x
  3. Step 3: Cross multiply
    856,837.70x = 1,285,256.55 × 657,772.10
  4. Step 4: Simplify right side
    856,837.70x = 845,405,899,932.26
  5. Step 5: Solve for x
    x = 845,405,899,932.26/856,837.70
  6. Step 6: Final answer
    x = 986,658.15

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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.