Finding the Fourth Proportional to 874,938.80, 1,207,572.12 and 512,341.49
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Solution
The fourth proportional to 874,938.80, 1,207,572.12 and 512,341.49 is: 707,122.94
Step by Step Solution
- Step 1: Write the proportion equation
874,938.80 : 1,207,572.12 = 512,341.49 : x - Step 2: Convert to fraction form
874,938.80/1,207,572.12 = 512,341.49/x - Step 3: Cross multiply
874,938.80x = 1,207,572.12 × 512,341.49 - Step 4: Simplify right side
874,938.80x = 618,689,299,243.26 - Step 5: Solve for x
x = 618,689,299,243.26/874,938.80 - Step 6: Final answer
x = 707,122.94
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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.