Home / 741,981.60-1,112,972.40-505,785.60

Finding the Fourth Proportional to 741,981.60, 1,112,972.40 and 505,785.60

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Solution

The fourth proportional to 741,981.60, 1,112,972.40 and 505,785.60 is: 758,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,981.60 : 1,112,972.40 = 505,785.60 : x
  2. Step 2: Convert to fraction form
    741,981.60/1,112,972.40 = 505,785.60/x
  3. Step 3: Cross multiply
    741,981.60x = 1,112,972.40 × 505,785.60
  4. Step 4: Simplify right side
    741,981.60x = 562,925,413,117.44
  5. Step 5: Solve for x
    x = 562,925,413,117.44/741,981.60
  6. Step 6: Final answer
    x = 758,678.40

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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.