Home / 1,997,571-2,756,697.90-1,212,646.20

Finding the Fourth Proportional to 1,997,571, 2,756,697.90 and 1,212,646.20

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Solution

The fourth proportional to 1,997,571, 2,756,697.90 and 1,212,646.20 is: 1,673,482.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,571 : 2,756,697.90 = 1,212,646.20 : x
  2. Step 2: Convert to fraction form
    1,997,571/2,756,697.90 = 1,212,646.20/x
  3. Step 3: Cross multiply
    1,997,571x = 2,756,697.90 × 1,212,646.20
  4. Step 4: Simplify right side
    1,997,571x = 3,342,899,232,982.98
  5. Step 5: Solve for x
    x = 3,342,899,232,982.98/1,997,571
  6. Step 6: Final answer
    x = 1,673,482.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.