Finding the Fourth Proportional to 1,621,860.22, 2,238,230.64 and 1,077,056.65
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Solution
The fourth proportional to 1,621,860.22, 2,238,230.64 and 1,077,056.65 is: 1,486,380.37
Step by Step Solution
- Step 1: Write the proportion equation
1,621,860.22 : 2,238,230.64 = 1,077,056.65 : x - Step 2: Convert to fraction form
1,621,860.22/2,238,230.64 = 1,077,056.65/x - Step 3: Cross multiply
1,621,860.22x = 2,238,230.64 × 1,077,056.65 - Step 4: Simplify right side
1,621,860.22x = 2,410,701,195,045.76 - Step 5: Solve for x
x = 2,410,701,195,045.76/1,621,860.22 - Step 6: Final answer
x = 1,486,380.37
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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.