Home / 1,189,417.62-1,640,649.72-705,640.26

Finding the Fourth Proportional to 1,189,417.62, 1,640,649.72 and 705,640.26

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Solution

The fourth proportional to 1,189,417.62, 1,640,649.72 and 705,640.26 is: 973,340.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,417.62 : 1,640,649.72 = 705,640.26 : x
  2. Step 2: Convert to fraction form
    1,189,417.62/1,640,649.72 = 705,640.26/x
  3. Step 3: Cross multiply
    1,189,417.62x = 1,640,649.72 × 705,640.26
  4. Step 4: Simplify right side
    1,189,417.62x = 1,157,708,494,989.73
  5. Step 5: Solve for x
    x = 1,157,708,494,989.73/1,189,417.62
  6. Step 6: Final answer
    x = 973,340.63

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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.