Home / 1,990,493.40-2,985,740.10-1,148,611.80

Finding the Fourth Proportional to 1,990,493.40, 2,985,740.10 and 1,148,611.80

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Solution

The fourth proportional to 1,990,493.40, 2,985,740.10 and 1,148,611.80 is: 1,722,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,493.40 : 2,985,740.10 = 1,148,611.80 : x
  2. Step 2: Convert to fraction form
    1,990,493.40/2,985,740.10 = 1,148,611.80/x
  3. Step 3: Cross multiply
    1,990,493.40x = 2,985,740.10 × 1,148,611.80
  4. Step 4: Simplify right side
    1,990,493.40x = 3,429,456,310,593.18
  5. Step 5: Solve for x
    x = 3,429,456,310,593.18/1,990,493.40
  6. Step 6: Final answer
    x = 1,722,917.70

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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.