Home / 1,297,357.72-1,946,222.31-398,874.90

Finding the Fourth Proportional to 1,297,357.72, 1,946,222.31 and 398,874.90

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Solution

The fourth proportional to 1,297,357.72, 1,946,222.31 and 398,874.90 is: 598,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,357.72 : 1,946,222.31 = 398,874.90 : x
  2. Step 2: Convert to fraction form
    1,297,357.72/1,946,222.31 = 398,874.90/x
  3. Step 3: Cross multiply
    1,297,357.72x = 1,946,222.31 × 398,874.90
  4. Step 4: Simplify right side
    1,297,357.72x = 776,299,227,284.65
  5. Step 5: Solve for x
    x = 776,299,227,284.65/1,297,357.72
  6. Step 6: Final answer
    x = 598,369.45

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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.