Home / 1,189,235.28-1,640,608.92-705,820.80

Finding the Fourth Proportional to 1,189,235.28, 1,640,608.92 and 705,820.80

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Solution

The fourth proportional to 1,189,235.28, 1,640,608.92 and 705,820.80 is: 973,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,235.28 : 1,640,608.92 = 705,820.80 : x
  2. Step 2: Convert to fraction form
    1,189,235.28/1,640,608.92 = 705,820.80/x
  3. Step 3: Cross multiply
    1,189,235.28x = 1,640,608.92 × 705,820.80
  4. Step 4: Simplify right side
    1,189,235.28x = 1,157,975,900,401.54
  5. Step 5: Solve for x
    x = 1,157,975,900,401.54/1,189,235.28
  6. Step 6: Final answer
    x = 973,714.72

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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.