Home / 756,769.20-1,135,672.20-419,809.20

Finding the Fourth Proportional to 756,769.20, 1,135,672.20 and 419,809.20

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Solution

The fourth proportional to 756,769.20, 1,135,672.20 and 419,809.20 is: 630,001.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,769.20 : 1,135,672.20 = 419,809.20 : x
  2. Step 2: Convert to fraction form
    756,769.20/1,135,672.20 = 419,809.20/x
  3. Step 3: Cross multiply
    756,769.20x = 1,135,672.20 × 419,809.20
  4. Step 4: Simplify right side
    756,769.20x = 476,765,637,744.24
  5. Step 5: Solve for x
    x = 476,765,637,744.24/756,769.20
  6. Step 6: Final answer
    x = 630,001.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.