Finding the Fourth Proportional to 2,109,614.74, 2,911,282.31 and 1,142,745.02
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Solution
The fourth proportional to 2,109,614.74, 2,911,282.31 and 1,142,745.02 is: 1,576,995.70
Step by Step Solution
- Step 1: Write the proportion equation
2,109,614.74 : 2,911,282.31 = 1,142,745.02 : x - Step 2: Convert to fraction form
2,109,614.74/2,911,282.31 = 1,142,745.02/x - Step 3: Cross multiply
2,109,614.74x = 2,911,282.31 × 1,142,745.02 - Step 4: Simplify right side
2,109,614.74x = 3,326,853,360,784.36 - Step 5: Solve for x
x = 3,326,853,360,784.36/2,109,614.74 - Step 6: Final answer
x = 1,576,995.70
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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.