Home / 842,353.80-1,263,530.70-523,489.20

Finding the Fourth Proportional to 842,353.80, 1,263,530.70 and 523,489.20

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Solution

The fourth proportional to 842,353.80, 1,263,530.70 and 523,489.20 is: 785,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,353.80 : 1,263,530.70 = 523,489.20 : x
  2. Step 2: Convert to fraction form
    842,353.80/1,263,530.70 = 523,489.20/x
  3. Step 3: Cross multiply
    842,353.80x = 1,263,530.70 × 523,489.20
  4. Step 4: Simplify right side
    842,353.80x = 661,444,675,318.44
  5. Step 5: Solve for x
    x = 661,444,675,318.44/842,353.80
  6. Step 6: Final answer
    x = 785,233.80

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Double scale
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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.