Home / 427,020.72-589,228.39-243,264.12

Finding the Fourth Proportional to 427,020.72, 589,228.39 and 243,264.12

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Solution

The fourth proportional to 427,020.72, 589,228.39 and 243,264.12 is: 335,670.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,020.72 : 589,228.39 = 243,264.12 : x
  2. Step 2: Convert to fraction form
    427,020.72/589,228.39 = 243,264.12/x
  3. Step 3: Cross multiply
    427,020.72x = 589,228.39 × 243,264.12
  4. Step 4: Simplify right side
    427,020.72x = 143,338,125,772.37
  5. Step 5: Solve for x
    x = 143,338,125,772.37/427,020.72
  6. Step 6: Final answer
    x = 335,670.19

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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.