Home / 612,769.74-919,179.33-213,450.90

Finding the Fourth Proportional to 612,769.74, 919,179.33 and 213,450.90

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Solution

The fourth proportional to 612,769.74, 919,179.33 and 213,450.90 is: 320,184.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,769.74 : 919,179.33 = 213,450.90 : x
  2. Step 2: Convert to fraction form
    612,769.74/919,179.33 = 213,450.90/x
  3. Step 3: Cross multiply
    612,769.74x = 919,179.33 × 213,450.90
  4. Step 4: Simplify right side
    612,769.74x = 196,199,655,249.90
  5. Step 5: Solve for x
    x = 196,199,655,249.90/612,769.74
  6. Step 6: Final answer
    x = 320,184.96

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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.