Home / 659,401.58-989,091.63-210,116.39

Finding the Fourth Proportional to 659,401.58, 989,091.63 and 210,116.39

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Solution

The fourth proportional to 659,401.58, 989,091.63 and 210,116.39 is: 315,171.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,401.58 : 989,091.63 = 210,116.39 : x
  2. Step 2: Convert to fraction form
    659,401.58/989,091.63 = 210,116.39/x
  3. Step 3: Cross multiply
    659,401.58x = 989,091.63 × 210,116.39
  4. Step 4: Simplify right side
    659,401.58x = 207,824,357,729.36
  5. Step 5: Solve for x
    x = 207,824,357,729.36/659,401.58
  6. Step 6: Final answer
    x = 315,171.16

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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.