Home / 1,297,296.90-1,946,131.35-398,813.97

Finding the Fourth Proportional to 1,297,296.90, 1,946,131.35 and 398,813.97

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Solution

The fourth proportional to 1,297,296.90, 1,946,131.35 and 398,813.97 is: 598,278.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,296.90 : 1,946,131.35 = 398,813.97 : x
  2. Step 2: Convert to fraction form
    1,297,296.90/1,946,131.35 = 398,813.97/x
  3. Step 3: Cross multiply
    1,297,296.90x = 1,946,131.35 × 398,813.97
  4. Step 4: Simplify right side
    1,297,296.90x = 776,144,369,834.96
  5. Step 5: Solve for x
    x = 776,144,369,834.96/1,297,296.90
  6. Step 6: Final answer
    x = 598,278.13

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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.