Home / 659,396.29-989,083.52-210,111.05

Finding the Fourth Proportional to 659,396.29, 989,083.52 and 210,111.05

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Solution

The fourth proportional to 659,396.29, 989,083.52 and 210,111.05 is: 315,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,396.29 : 989,083.52 = 210,111.05 : x
  2. Step 2: Convert to fraction form
    659,396.29/989,083.52 = 210,111.05/x
  3. Step 3: Cross multiply
    659,396.29x = 989,083.52 × 210,111.05
  4. Step 4: Simplify right side
    659,396.29x = 207,817,376,924.90
  5. Step 5: Solve for x
    x = 207,817,376,924.90/659,396.29
  6. Step 6: Final answer
    x = 315,163.10

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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.