Home / 1,297,987.30-1,946,980.95-738,115.30

Finding the Fourth Proportional to 1,297,987.30, 1,946,980.95 and 738,115.30

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Solution

The fourth proportional to 1,297,987.30, 1,946,980.95 and 738,115.30 is: 1,107,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,987.30 : 1,946,980.95 = 738,115.30 : x
  2. Step 2: Convert to fraction form
    1,297,987.30/1,946,980.95 = 738,115.30/x
  3. Step 3: Cross multiply
    1,297,987.30x = 1,946,980.95 × 738,115.30
  4. Step 4: Simplify right side
    1,297,987.30x = 1,437,096,428,003.54
  5. Step 5: Solve for x
    x = 1,437,096,428,003.54/1,297,987.30
  6. Step 6: Final answer
    x = 1,107,172.95

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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.