Home / 939,275.92-1,297,121.50-649,629.64

Finding the Fourth Proportional to 939,275.92, 1,297,121.50 and 649,629.64

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Solution

The fourth proportional to 939,275.92, 1,297,121.50 and 649,629.64 is: 897,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,275.92 : 1,297,121.50 = 649,629.64 : x
  2. Step 2: Convert to fraction form
    939,275.92/1,297,121.50 = 649,629.64/x
  3. Step 3: Cross multiply
    939,275.92x = 1,297,121.50 × 649,629.64
  4. Step 4: Simplify right side
    939,275.92x = 842,648,573,081.26
  5. Step 5: Solve for x
    x = 842,648,573,081.26/939,275.92
  6. Step 6: Final answer
    x = 897,125.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.