Home / 1,328,255.35-1,993,444.63-688,741.31

Finding the Fourth Proportional to 1,328,255.35, 1,993,444.63 and 688,741.31

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Solution

The fourth proportional to 1,328,255.35, 1,993,444.63 and 688,741.31 is: 1,033,662.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,255.35 : 1,993,444.63 = 688,741.31 : x
  2. Step 2: Convert to fraction form
    1,328,255.35/1,993,444.63 = 688,741.31/x
  3. Step 3: Cross multiply
    1,328,255.35x = 1,993,444.63 × 688,741.31
  4. Step 4: Simplify right side
    1,328,255.35x = 1,372,967,669,140.42
  5. Step 5: Solve for x
    x = 1,372,967,669,140.42/1,328,255.35
  6. Step 6: Final answer
    x = 1,033,662.44

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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.