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Finding the Fourth Proportional to 540,529.92, 810,927.03 and 380,917.20

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Solution

The fourth proportional to 540,529.92, 810,927.03 and 380,917.20 is: 571,468.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,529.92 : 810,927.03 = 380,917.20 : x
  2. Step 2: Convert to fraction form
    540,529.92/810,927.03 = 380,917.20/x
  3. Step 3: Cross multiply
    540,529.92x = 810,927.03 × 380,917.20
  4. Step 4: Simplify right side
    540,529.92x = 308,896,053,671.92
  5. Step 5: Solve for x
    x = 308,896,053,671.92/540,529.92
  6. Step 6: Final answer
    x = 571,468.93

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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.