Finding the Fourth Proportional to 658,367.68, 908,183.61 and 535,991.70
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Solution
The fourth proportional to 658,367.68, 908,183.61 and 535,991.70 is: 739,372.38
Step by Step Solution
- Step 1: Write the proportion equation
658,367.68 : 908,183.61 = 535,991.70 : x - Step 2: Convert to fraction form
658,367.68/908,183.61 = 535,991.70/x - Step 3: Cross multiply
658,367.68x = 908,183.61 × 535,991.70 - Step 4: Simplify right side
658,367.68x = 486,778,877,036.04 - Step 5: Solve for x
x = 486,778,877,036.04/658,367.68 - Step 6: Final answer
x = 739,372.38
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1.5x scale
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.