Home / 553,769.07-764,201.33-299,120.25

Finding the Fourth Proportional to 553,769.07, 764,201.33 and 299,120.25

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Solution

The fourth proportional to 553,769.07, 764,201.33 and 299,120.25 is: 412,785.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,769.07 : 764,201.33 = 299,120.25 : x
  2. Step 2: Convert to fraction form
    553,769.07/764,201.33 = 299,120.25/x
  3. Step 3: Cross multiply
    553,769.07x = 764,201.33 × 299,120.25
  4. Step 4: Simplify right side
    553,769.07x = 228,588,092,879.93
  5. Step 5: Solve for x
    x = 228,588,092,879.93/553,769.07
  6. Step 6: Final answer
    x = 412,785.95

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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.