Home / 1,297,327.20-1,946,176.88-398,844.38

Finding the Fourth Proportional to 1,297,327.20, 1,946,176.88 and 398,844.38

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Solution

The fourth proportional to 1,297,327.20, 1,946,176.88 and 398,844.38 is: 598,323.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,327.20 : 1,946,176.88 = 398,844.38 : x
  2. Step 2: Convert to fraction form
    1,297,327.20/1,946,176.88 = 398,844.38/x
  3. Step 3: Cross multiply
    1,297,327.20x = 1,946,176.88 × 398,844.38
  4. Step 4: Simplify right side
    1,297,327.20x = 776,221,709,079.71
  5. Step 5: Solve for x
    x = 776,221,709,079.71/1,297,327.20
  6. Step 6: Final answer
    x = 598,323.78

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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.