Home / 1,060,840.40-1,591,260.60-640,936.40

Finding the Fourth Proportional to 1,060,840.40, 1,591,260.60 and 640,936.40

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Solution

The fourth proportional to 1,060,840.40, 1,591,260.60 and 640,936.40 is: 961,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060,840.40 : 1,591,260.60 = 640,936.40 : x
  2. Step 2: Convert to fraction form
    1,060,840.40/1,591,260.60 = 640,936.40/x
  3. Step 3: Cross multiply
    1,060,840.40x = 1,591,260.60 × 640,936.40
  4. Step 4: Simplify right side
    1,060,840.40x = 1,019,896,840,425.84
  5. Step 5: Solve for x
    x = 1,019,896,840,425.84/1,060,840.40
  6. Step 6: Final answer
    x = 961,404.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.