Finding the Fourth Proportional to 612,788.19, 845,647.67 and 344,516.19
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Solution
The fourth proportional to 612,788.19, 845,647.67 and 344,516.19 is: 475,432.32
Step by Step Solution
- Step 1: Write the proportion equation
612,788.19 : 845,647.67 = 344,516.19 : x - Step 2: Convert to fraction form
612,788.19/845,647.67 = 344,516.19/x - Step 3: Cross multiply
612,788.19x = 845,647.67 × 344,516.19 - Step 4: Simplify right side
612,788.19x = 291,339,311,628.20 - Step 5: Solve for x
x = 291,339,311,628.20/612,788.19 - Step 6: Final answer
x = 475,432.32
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Double scale
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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.