Home / 1,994,131.23-2,990,569.44-645,981.05

Finding the Fourth Proportional to 1,994,131.23, 2,990,569.44 and 645,981.05

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Solution

The fourth proportional to 1,994,131.23, 2,990,569.44 and 645,981.05 is: 968,768.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,131.23 : 2,990,569.44 = 645,981.05 : x
  2. Step 2: Convert to fraction form
    1,994,131.23/2,990,569.44 = 645,981.05/x
  3. Step 3: Cross multiply
    1,994,131.23x = 2,990,569.44 × 645,981.05
  4. Step 4: Simplify right side
    1,994,131.23x = 1,931,851,169,573.84
  5. Step 5: Solve for x
    x = 1,931,851,169,573.84/1,994,131.23
  6. Step 6: Final answer
    x = 968,768.33

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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.