Finding the Fourth Proportional to 2,137,400.07, 2,949,621.53 and 1,170,537.09
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Solution
The fourth proportional to 2,137,400.07, 2,949,621.53 and 1,170,537.09 is: 1,615,346.35
Step by Step Solution
- Step 1: Write the proportion equation
2,137,400.07 : 2,949,621.53 = 1,170,537.09 : x - Step 2: Convert to fraction form
2,137,400.07/2,949,621.53 = 1,170,537.09/x - Step 3: Cross multiply
2,137,400.07x = 2,949,621.53 × 1,170,537.09 - Step 4: Simplify right side
2,137,400.07x = 3,452,641,396,474.86 - Step 5: Solve for x
x = 3,452,641,396,474.86/2,137,400.07 - Step 6: Final answer
x = 1,615,346.35
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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.