Finding the Fourth Proportional to 1,206,365.13, 1,664,916.89 and 690,167.07
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Solution
The fourth proportional to 1,206,365.13, 1,664,916.89 and 690,167.07 is: 952,506.65
Step by Step Solution
- Step 1: Write the proportion equation
1,206,365.13 : 1,664,916.89 = 690,167.07 : x - Step 2: Convert to fraction form
1,206,365.13/1,664,916.89 = 690,167.07/x - Step 3: Cross multiply
1,206,365.13x = 1,664,916.89 × 690,167.07 - Step 4: Simplify right side
1,206,365.13x = 1,149,070,808,313.98 - Step 5: Solve for x
x = 1,149,070,808,313.98/1,206,365.13 - Step 6: Final answer
x = 952,506.65
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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.