Home / 1,223,147.16-1,687,896.80-679,317.96

Finding the Fourth Proportional to 1,223,147.16, 1,687,896.80 and 679,317.96

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Solution

The fourth proportional to 1,223,147.16, 1,687,896.80 and 679,317.96 is: 937,433.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,147.16 : 1,687,896.80 = 679,317.96 : x
  2. Step 2: Convert to fraction form
    1,223,147.16/1,687,896.80 = 679,317.96/x
  3. Step 3: Cross multiply
    1,223,147.16x = 1,687,896.80 × 679,317.96
  4. Step 4: Simplify right side
    1,223,147.16x = 1,146,618,607,469.94
  5. Step 5: Solve for x
    x = 1,146,618,607,469.94/1,223,147.16
  6. Step 6: Final answer
    x = 937,433.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.