Finding the Fourth Proportional to 1,434,916.10, 1,980,197.61 and 790,338.62
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Solution
The fourth proportional to 1,434,916.10, 1,980,197.61 and 790,338.62 is: 1,090,674.67
Step by Step Solution
- Step 1: Write the proportion equation
1,434,916.10 : 1,980,197.61 = 790,338.62 : x - Step 2: Convert to fraction form
1,434,916.10/1,980,197.61 = 790,338.62/x - Step 3: Cross multiply
1,434,916.10x = 1,980,197.61 × 790,338.62 - Step 4: Simplify right side
1,434,916.10x = 1,565,026,646,414.70 - Step 5: Solve for x
x = 1,565,026,646,414.70/1,434,916.10 - Step 6: Final answer
x = 1,090,674.67
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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.