Home / 659,400.20-989,089.56-210,115.01

Finding the Fourth Proportional to 659,400.20, 989,089.56 and 210,115.01

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Solution

The fourth proportional to 659,400.20, 989,089.56 and 210,115.01 is: 315,169.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,400.20 : 989,089.56 = 210,115.01 : x
  2. Step 2: Convert to fraction form
    659,400.20/989,089.56 = 210,115.01/x
  3. Step 3: Cross multiply
    659,400.20x = 989,089.56 × 210,115.01
  4. Step 4: Simplify right side
    659,400.20x = 207,822,562,790.30
  5. Step 5: Solve for x
    x = 207,822,562,790.30/659,400.20
  6. Step 6: Final answer
    x = 315,169.09

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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.