Home / 401,979.53-554,732.71-220,703.14

Finding the Fourth Proportional to 401,979.53, 554,732.71 and 220,703.14

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Solution

The fourth proportional to 401,979.53, 554,732.71 and 220,703.14 is: 304,570.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,979.53 : 554,732.71 = 220,703.14 : x
  2. Step 2: Convert to fraction form
    401,979.53/554,732.71 = 220,703.14/x
  3. Step 3: Cross multiply
    401,979.53x = 554,732.71 × 220,703.14
  4. Step 4: Simplify right side
    401,979.53x = 122,431,250,957.71
  5. Step 5: Solve for x
    x = 122,431,250,957.71/401,979.53
  6. Step 6: Final answer
    x = 304,570.86

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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.