Home / 1,297,464.70-1,946,383.05-398,981.90

Finding the Fourth Proportional to 1,297,464.70, 1,946,383.05 and 398,981.90

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Solution

The fourth proportional to 1,297,464.70, 1,946,383.05 and 398,981.90 is: 598,530.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,464.70 : 1,946,383.05 = 398,981.90 : x
  2. Step 2: Convert to fraction form
    1,297,464.70/1,946,383.05 = 398,981.90/x
  3. Step 3: Cross multiply
    1,297,464.70x = 1,946,383.05 × 398,981.90
  4. Step 4: Simplify right side
    1,297,464.70x = 776,571,607,416.80
  5. Step 5: Solve for x
    x = 776,571,607,416.80/1,297,464.70
  6. Step 6: Final answer
    x = 598,530.05

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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.