Home / 1,328,611.80-1,992,917.70-487,054.20

Finding the Fourth Proportional to 1,328,611.80, 1,992,917.70 and 487,054.20

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Solution

The fourth proportional to 1,328,611.80, 1,992,917.70 and 487,054.20 is: 730,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,611.80 : 1,992,917.70 = 487,054.20 : x
  2. Step 2: Convert to fraction form
    1,328,611.80/1,992,917.70 = 487,054.20/x
  3. Step 3: Cross multiply
    1,328,611.80x = 1,992,917.70 × 487,054.20
  4. Step 4: Simplify right side
    1,328,611.80x = 970,658,936,039.34
  5. Step 5: Solve for x
    x = 970,658,936,039.34/1,328,611.80
  6. Step 6: Final answer
    x = 730,581.30

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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.