Finding the Fourth Proportional to 1,911,710.42, 2,638,139.45 and 1,052,252.18
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Solution
The fourth proportional to 1,911,710.42, 2,638,139.45 and 1,052,252.18 is: 1,452,096.49
Step by Step Solution
- Step 1: Write the proportion equation
1,911,710.42 : 2,638,139.45 = 1,052,252.18 : x - Step 2: Convert to fraction form
1,911,710.42/2,638,139.45 = 1,052,252.18/x - Step 3: Cross multiply
1,911,710.42x = 2,638,139.45 × 1,052,252.18 - Step 4: Simplify right side
1,911,710.42x = 2,775,987,987,406.50 - Step 5: Solve for x
x = 2,775,987,987,406.50/1,911,710.42 - Step 6: Final answer
x = 1,452,096.49
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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.