Finding the Fourth Proportional to 2,078,972.01, 2,868,951.14 and 1,161,214.23
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Solution
The fourth proportional to 2,078,972.01, 2,868,951.14 and 1,161,214.23 is: 1,602,458.75
Step by Step Solution
- Step 1: Write the proportion equation
2,078,972.01 : 2,868,951.14 = 1,161,214.23 : x - Step 2: Convert to fraction form
2,078,972.01/2,868,951.14 = 1,161,214.23/x - Step 3: Cross multiply
2,078,972.01x = 2,868,951.14 × 1,161,214.23 - Step 4: Simplify right side
2,078,972.01x = 3,331,466,883,136.65 - Step 5: Solve for x
x = 3,331,466,883,136.65/2,078,972.01 - Step 6: Final answer
x = 1,602,458.75
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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.