Home / 1,189,425.12-1,640,660.06-705,647.76

Finding the Fourth Proportional to 1,189,425.12, 1,640,660.06 and 705,647.76

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Solution

The fourth proportional to 1,189,425.12, 1,640,660.06 and 705,647.76 is: 973,350.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,425.12 : 1,640,660.06 = 705,647.76 : x
  2. Step 2: Convert to fraction form
    1,189,425.12/1,640,660.06 = 705,647.76/x
  3. Step 3: Cross multiply
    1,189,425.12x = 1,640,660.06 × 705,647.76
  4. Step 4: Simplify right side
    1,189,425.12x = 1,157,728,096,260.47
  5. Step 5: Solve for x
    x = 1,157,728,096,260.47/1,189,425.12
  6. Step 6: Final answer
    x = 973,350.97

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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.