Home / 1,297,681.80-1,946,177.10-399,121.80

Finding the Fourth Proportional to 1,297,681.80, 1,946,177.10 and 399,121.80

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Solution

The fourth proportional to 1,297,681.80, 1,946,177.10 and 399,121.80 is: 598,576.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,681.80 : 1,946,177.10 = 399,121.80 : x
  2. Step 2: Convert to fraction form
    1,297,681.80/1,946,177.10 = 399,121.80/x
  3. Step 3: Cross multiply
    1,297,681.80x = 1,946,177.10 × 399,121.80
  4. Step 4: Simplify right side
    1,297,681.80x = 776,761,707,270.78
  5. Step 5: Solve for x
    x = 776,761,707,270.78/1,297,681.80
  6. Step 6: Final answer
    x = 598,576.41

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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.