Finding the Fourth Proportional to 709,613.19, 979,269.66 and 387,330.75
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Solution
The fourth proportional to 709,613.19, 979,269.66 and 387,330.75 is: 534,518.32
Step by Step Solution
- Step 1: Write the proportion equation
709,613.19 : 979,269.66 = 387,330.75 : x - Step 2: Convert to fraction form
709,613.19/979,269.66 = 387,330.75/x - Step 3: Cross multiply
709,613.19x = 979,269.66 × 387,330.75 - Step 4: Simplify right side
709,613.19x = 379,301,251,860.05 - Step 5: Solve for x
x = 379,301,251,860.05/709,613.19 - Step 6: Final answer
x = 534,518.32
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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.