Home / 545,857.20-753,338.40-304,179.12

Finding the Fourth Proportional to 545,857.20, 753,338.40 and 304,179.12

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Solution

The fourth proportional to 545,857.20, 753,338.40 and 304,179.12 is: 419,798.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,857.20 : 753,338.40 = 304,179.12 : x
  2. Step 2: Convert to fraction form
    545,857.20/753,338.40 = 304,179.12/x
  3. Step 3: Cross multiply
    545,857.20x = 753,338.40 × 304,179.12
  4. Step 4: Simplify right side
    545,857.20x = 229,149,811,574.21
  5. Step 5: Solve for x
    x = 229,149,811,574.21/545,857.20
  6. Step 6: Final answer
    x = 419,798.09

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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.