Home / 427,067.37-589,443.08-355,377.51

Finding the Fourth Proportional to 427,067.37, 589,443.08 and 355,377.51

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Solution

The fourth proportional to 427,067.37, 589,443.08 and 355,377.51 is: 490,495.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,067.37 : 589,443.08 = 355,377.51 : x
  2. Step 2: Convert to fraction form
    427,067.37/589,443.08 = 355,377.51/x
  3. Step 3: Cross multiply
    427,067.37x = 589,443.08 × 355,377.51
  4. Step 4: Simplify right side
    427,067.37x = 209,474,812,280.24
  5. Step 5: Solve for x
    x = 209,474,812,280.24/427,067.37
  6. Step 6: Final answer
    x = 490,495.94

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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.