Home / 401,964.72-554,731.32-220,675.36

Finding the Fourth Proportional to 401,964.72, 554,731.32 and 220,675.36

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Solution

The fourth proportional to 401,964.72, 554,731.32 and 220,675.36 is: 304,542.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,964.72 : 554,731.32 = 220,675.36 : x
  2. Step 2: Convert to fraction form
    401,964.72/554,731.32 = 220,675.36/x
  3. Step 3: Cross multiply
    401,964.72x = 554,731.32 × 220,675.36
  4. Step 4: Simplify right side
    401,964.72x = 122,415,533,744.28
  5. Step 5: Solve for x
    x = 122,415,533,744.28/401,964.72
  6. Step 6: Final answer
    x = 304,542.98

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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.