Home / 306,984.35-420,570.09-295,478.89

Finding the Fourth Proportional to 306,984.35, 420,570.09 and 295,478.89

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Solution

The fourth proportional to 306,984.35, 420,570.09 and 295,478.89 is: 404,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,984.35 : 420,570.09 = 295,478.89 : x
  2. Step 2: Convert to fraction form
    306,984.35/420,570.09 = 295,478.89/x
  3. Step 3: Cross multiply
    306,984.35x = 420,570.09 × 295,478.89
  4. Step 4: Simplify right side
    306,984.35x = 124,269,582,308.98
  5. Step 5: Solve for x
    x = 124,269,582,308.98/306,984.35
  6. Step 6: Final answer
    x = 404,807.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.