Home / 659,401.20-989,091.06-210,116.01

Finding the Fourth Proportional to 659,401.20, 989,091.06 and 210,116.01

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Solution

The fourth proportional to 659,401.20, 989,091.06 and 210,116.01 is: 315,170.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,401.20 : 989,091.06 = 210,116.01 : x
  2. Step 2: Convert to fraction form
    659,401.20/989,091.06 = 210,116.01/x
  3. Step 3: Cross multiply
    659,401.20x = 989,091.06 × 210,116.01
  4. Step 4: Simplify right side
    659,401.20x = 207,823,867,053.87
  5. Step 5: Solve for x
    x = 207,823,867,053.87/659,401.20
  6. Step 6: Final answer
    x = 315,170.59

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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.