Home / 928,190.40-1,392,285.60-872,203.20

Finding the Fourth Proportional to 928,190.40, 1,392,285.60 and 872,203.20

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Solution

The fourth proportional to 928,190.40, 1,392,285.60 and 872,203.20 is: 1,308,304.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,190.40 : 1,392,285.60 = 872,203.20 : x
  2. Step 2: Convert to fraction form
    928,190.40/1,392,285.60 = 872,203.20/x
  3. Step 3: Cross multiply
    928,190.40x = 1,392,285.60 × 872,203.20
  4. Step 4: Simplify right side
    928,190.40x = 1,214,355,955,633.92
  5. Step 5: Solve for x
    x = 1,214,355,955,633.92/928,190.40
  6. Step 6: Final answer
    x = 1,308,304.80

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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.