Home / 764,585.35-1,146,161.78-258,792.39

Finding the Fourth Proportional to 764,585.35, 1,146,161.78 and 258,792.39

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Solution

The fourth proportional to 764,585.35, 1,146,161.78 and 258,792.39 is: 387,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,585.35 : 1,146,161.78 = 258,792.39 : x
  2. Step 2: Convert to fraction form
    764,585.35/1,146,161.78 = 258,792.39/x
  3. Step 3: Cross multiply
    764,585.35x = 1,146,161.78 × 258,792.39
  4. Step 4: Simplify right side
    764,585.35x = 296,617,945,078.89
  5. Step 5: Solve for x
    x = 296,617,945,078.89/764,585.35
  6. Step 6: Final answer
    x = 387,946.15

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1.5x scale

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.