Home / 686,320.29-1,029,465.86-187,684.29

Finding the Fourth Proportional to 686,320.29, 1,029,465.86 and 187,684.29

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Solution

The fourth proportional to 686,320.29, 1,029,465.86 and 187,684.29 is: 281,522.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,320.29 : 1,029,465.86 = 187,684.29 : x
  2. Step 2: Convert to fraction form
    686,320.29/1,029,465.86 = 187,684.29/x
  3. Step 3: Cross multiply
    686,320.29x = 1,029,465.86 × 187,684.29
  4. Step 4: Simplify right side
    686,320.29x = 193,214,568,074.92
  5. Step 5: Solve for x
    x = 193,214,568,074.92/686,320.29
  6. Step 6: Final answer
    x = 281,522.45

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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.