Home / 1,189,261.20-1,640,869.74-705,934.20

Finding the Fourth Proportional to 1,189,261.20, 1,640,869.74 and 705,934.20

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Solution

The fourth proportional to 1,189,261.20, 1,640,869.74 and 705,934.20 is: 974,004.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,261.20 : 1,640,869.74 = 705,934.20 : x
  2. Step 2: Convert to fraction form
    1,189,261.20/1,640,869.74 = 705,934.20/x
  3. Step 3: Cross multiply
    1,189,261.20x = 1,640,869.74 × 705,934.20
  4. Step 4: Simplify right side
    1,189,261.20x = 1,158,346,067,211.11
  5. Step 5: Solve for x
    x = 1,158,346,067,211.11/1,189,261.20
  6. Step 6: Final answer
    x = 974,004.76

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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.