Finding the Fourth Proportional to 2,991,921.36, 4,487,849.64 and 2,390,058.96
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Solution
The fourth proportional to 2,991,921.36, 4,487,849.64 and 2,390,058.96 is: 3,585,062.56
Step by Step Solution
- Step 1: Write the proportion equation
2,991,921.36 : 4,487,849.64 = 2,390,058.96 : x - Step 2: Convert to fraction form
2,991,921.36/4,487,849.64 = 2,390,058.96/x - Step 3: Cross multiply
2,991,921.36x = 4,487,849.64 × 2,390,058.96 - Step 4: Simplify right side
2,991,921.36x = 10,726,225,243,214.77 - Step 5: Solve for x
x = 10,726,225,243,214.77/2,991,921.36 - Step 6: Final answer
x = 3,585,062.56
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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.