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Finding the Fourth Proportional to 540,129.54, 810,367.39 and 378,192.27

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Solution

The fourth proportional to 540,129.54, 810,367.39 and 378,192.27 is: 567,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,129.54 : 810,367.39 = 378,192.27 : x
  2. Step 2: Convert to fraction form
    540,129.54/810,367.39 = 378,192.27/x
  3. Step 3: Cross multiply
    540,129.54x = 810,367.39 × 378,192.27
  4. Step 4: Simplify right side
    540,129.54x = 306,474,684,826.24
  5. Step 5: Solve for x
    x = 306,474,684,826.24/540,129.54
  6. Step 6: Final answer
    x = 567,409.60

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1.5x scale

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.