Home / 401,509.08-554,111.64-229,423.05

Finding the Fourth Proportional to 401,509.08, 554,111.64 and 229,423.05

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Solution

The fourth proportional to 401,509.08, 554,111.64 and 229,423.05 is: 316,620.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,509.08 : 554,111.64 = 229,423.05 : x
  2. Step 2: Convert to fraction form
    401,509.08/554,111.64 = 229,423.05/x
  3. Step 3: Cross multiply
    401,509.08x = 554,111.64 × 229,423.05
  4. Step 4: Simplify right side
    401,509.08x = 127,125,982,489.30
  5. Step 5: Solve for x
    x = 127,125,982,489.30/401,509.08
  6. Step 6: Final answer
    x = 316,620.44

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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.