Finding the Fourth Proportional to 936,712.11, 1,292,665.86 and 506,991.99
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Solution
The fourth proportional to 936,712.11, 1,292,665.86 and 506,991.99 is: 699,650.65
Step by Step Solution
- Step 1: Write the proportion equation
936,712.11 : 1,292,665.86 = 506,991.99 : x - Step 2: Convert to fraction form
936,712.11/1,292,665.86 = 506,991.99/x - Step 3: Cross multiply
936,712.11x = 1,292,665.86 × 506,991.99 - Step 4: Simplify right side
936,712.11x = 655,371,236,766.46 - Step 5: Solve for x
x = 655,371,236,766.46/936,712.11 - Step 6: Final answer
x = 699,650.65
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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.