Home / 770,078.92-1,155,315.42-296,637.16

Finding the Fourth Proportional to 770,078.92, 1,155,315.42 and 296,637.16

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Solution

The fourth proportional to 770,078.92, 1,155,315.42 and 296,637.16 is: 445,031.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,078.92 : 1,155,315.42 = 296,637.16 : x
  2. Step 2: Convert to fraction form
    770,078.92/1,155,315.42 = 296,637.16/x
  3. Step 3: Cross multiply
    770,078.92x = 1,155,315.42 × 296,637.16
  4. Step 4: Simplify right side
    770,078.92x = 342,709,485,093.01
  5. Step 5: Solve for x
    x = 342,709,485,093.01/770,078.92
  6. Step 6: Final answer
    x = 445,031.64

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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.