Home / 1,379,165.80-2,069,915.10-622,172.20

Finding the Fourth Proportional to 1,379,165.80, 2,069,915.10 and 622,172.20

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Solution

The fourth proportional to 1,379,165.80, 2,069,915.10 and 622,172.20 is: 933,784.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,165.80 : 2,069,915.10 = 622,172.20 : x
  2. Step 2: Convert to fraction form
    1,379,165.80/2,069,915.10 = 622,172.20/x
  3. Step 3: Cross multiply
    1,379,165.80x = 2,069,915.10 × 622,172.20
  4. Step 4: Simplify right side
    1,379,165.80x = 1,287,843,631,580.22
  5. Step 5: Solve for x
    x = 1,287,843,631,580.22/1,379,165.80
  6. Step 6: Final answer
    x = 933,784.49

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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.