Home / 1,994,409.20-2,988,114.60-1,637,490.80

Finding the Fourth Proportional to 1,994,409.20, 2,988,114.60 and 1,637,490.80

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Solution

The fourth proportional to 1,994,409.20, 2,988,114.60 and 1,637,490.80 is: 2,453,363.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,409.20 : 2,988,114.60 = 1,637,490.80 : x
  2. Step 2: Convert to fraction form
    1,994,409.20/2,988,114.60 = 1,637,490.80/x
  3. Step 3: Cross multiply
    1,994,409.20x = 2,988,114.60 × 1,637,490.80
  4. Step 4: Simplify right side
    1,994,409.20x = 4,893,010,166,845.68
  5. Step 5: Solve for x
    x = 4,893,010,166,845.68/1,994,409.20
  6. Step 6: Final answer
    x = 2,453,363.21

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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.