Finding the Fourth Proportional to 1,912,495.69, 2,639,261.58 and 1,053,086.70
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Solution
The fourth proportional to 1,912,495.69, 2,639,261.58 and 1,053,086.70 is: 1,453,269.30
Step by Step Solution
- Step 1: Write the proportion equation
1,912,495.69 : 2,639,261.58 = 1,053,086.70 : x - Step 2: Convert to fraction form
1,912,495.69/2,639,261.58 = 1,053,086.70/x - Step 3: Cross multiply
1,912,495.69x = 2,639,261.58 × 1,053,086.70 - Step 4: Simplify right side
1,912,495.69x = 2,779,371,267,718.99 - Step 5: Solve for x
x = 2,779,371,267,718.99/1,912,495.69 - Step 6: Final answer
x = 1,453,269.30
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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.