Finding the Fourth Proportional to 1,370,024.72, 1,889,385.30 and 1,176,371.70
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Solution
The fourth proportional to 1,370,024.72, 1,889,385.30 and 1,176,371.70 is: 1,622,320.65
Step by Step Solution
- Step 1: Write the proportion equation
1,370,024.72 : 1,889,385.30 = 1,176,371.70 : x - Step 2: Convert to fraction form
1,370,024.72/1,889,385.30 = 1,176,371.70/x - Step 3: Cross multiply
1,370,024.72x = 1,889,385.30 × 1,176,371.70 - Step 4: Simplify right side
1,370,024.72x = 2,222,619,397,316.01 - Step 5: Solve for x
x = 2,222,619,397,316.01/1,370,024.72 - Step 6: Final answer
x = 1,622,320.65
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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.