Home / 1,137,975.87-1,707,217.98-428,010.06

Finding the Fourth Proportional to 1,137,975.87, 1,707,217.98 and 428,010.06

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Solution

The fourth proportional to 1,137,975.87, 1,707,217.98 and 428,010.06 is: 642,110.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,975.87 : 1,707,217.98 = 428,010.06 : x
  2. Step 2: Convert to fraction form
    1,137,975.87/1,707,217.98 = 428,010.06/x
  3. Step 3: Cross multiply
    1,137,975.87x = 1,707,217.98 × 428,010.06
  4. Step 4: Simplify right side
    1,137,975.87x = 730,706,470,052.88
  5. Step 5: Solve for x
    x = 730,706,470,052.88/1,137,975.87
  6. Step 6: Final answer
    x = 642,110.69

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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.