Home / 420,232.84-579,918.64-238,944.77

Finding the Fourth Proportional to 420,232.84, 579,918.64 and 238,944.77

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Solution

The fourth proportional to 420,232.84, 579,918.64 and 238,944.77 is: 329,742.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,232.84 : 579,918.64 = 238,944.77 : x
  2. Step 2: Convert to fraction form
    420,232.84/579,918.64 = 238,944.77/x
  3. Step 3: Cross multiply
    420,232.84x = 579,918.64 × 238,944.77
  4. Step 4: Simplify right side
    420,232.84x = 138,568,523,956.01
  5. Step 5: Solve for x
    x = 138,568,523,956.01/420,232.84
  6. Step 6: Final answer
    x = 329,742.25

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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.