Home / 842,128.16-1,263,197.71-336,731.60

Finding the Fourth Proportional to 842,128.16, 1,263,197.71 and 336,731.60

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Solution

The fourth proportional to 842,128.16, 1,263,197.71 and 336,731.60 is: 505,099.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,128.16 : 1,263,197.71 = 336,731.60 : x
  2. Step 2: Convert to fraction form
    842,128.16/1,263,197.71 = 336,731.60/x
  3. Step 3: Cross multiply
    842,128.16x = 1,263,197.71 × 336,731.60
  4. Step 4: Simplify right side
    842,128.16x = 425,358,579,688.65
  5. Step 5: Solve for x
    x = 425,358,579,688.65/842,128.16
  6. Step 6: Final answer
    x = 505,099.58

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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.