Home / 825,729.36-1,139,237.34-481,487.40

Finding the Fourth Proportional to 825,729.36, 1,139,237.34 and 481,487.40

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Solution

The fourth proportional to 825,729.36, 1,139,237.34 and 481,487.40 is: 664,295.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,729.36 : 1,139,237.34 = 481,487.40 : x
  2. Step 2: Convert to fraction form
    825,729.36/1,139,237.34 = 481,487.40/x
  3. Step 3: Cross multiply
    825,729.36x = 1,139,237.34 × 481,487.40
  4. Step 4: Simplify right side
    825,729.36x = 548,528,424,819.52
  5. Step 5: Solve for x
    x = 548,528,424,819.52/825,729.36
  6. Step 6: Final answer
    x = 664,295.65

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Double scale
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1.5x scale

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.