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Finding the Fourth Proportional to 427,087, 589,328.90 and 236,074.42

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Solution

The fourth proportional to 427,087, 589,328.90 and 236,074.42 is: 325,754.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,087 : 589,328.90 = 236,074.42 : x
  2. Step 2: Convert to fraction form
    427,087/589,328.90 = 236,074.42/x
  3. Step 3: Cross multiply
    427,087x = 589,328.90 × 236,074.42
  4. Step 4: Simplify right side
    427,087x = 139,125,477,076.37
  5. Step 5: Solve for x
    x = 139,125,477,076.37/427,087
  6. Step 6: Final answer
    x = 325,754.42

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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.