Home / 842,496.40-1,263,744.60-523,631.80

Finding the Fourth Proportional to 842,496.40, 1,263,744.60 and 523,631.80

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Solution

The fourth proportional to 842,496.40, 1,263,744.60 and 523,631.80 is: 785,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,496.40 : 1,263,744.60 = 523,631.80 : x
  2. Step 2: Convert to fraction form
    842,496.40/1,263,744.60 = 523,631.80/x
  3. Step 3: Cross multiply
    842,496.40x = 1,263,744.60 × 523,631.80
  4. Step 4: Simplify right side
    842,496.40x = 661,736,859,638.28
  5. Step 5: Solve for x
    x = 661,736,859,638.28/842,496.40
  6. Step 6: Final answer
    x = 785,447.70

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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.