Home / 427,225.78-589,370.84-304,745.23

Finding the Fourth Proportional to 427,225.78, 589,370.84 and 304,745.23

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Solution

The fourth proportional to 427,225.78, 589,370.84 and 304,745.23 is: 420,405.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,225.78 : 589,370.84 = 304,745.23 : x
  2. Step 2: Convert to fraction form
    427,225.78/589,370.84 = 304,745.23/x
  3. Step 3: Cross multiply
    427,225.78x = 589,370.84 × 304,745.23
  4. Step 4: Simplify right side
    427,225.78x = 179,607,947,720.51
  5. Step 5: Solve for x
    x = 179,607,947,720.51/427,225.78
  6. Step 6: Final answer
    x = 420,405.22

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1.5x scale

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.