Finding the Fourth Proportional to 465,445.72, 698,154.63 and 128,506.94
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Solution
The fourth proportional to 465,445.72, 698,154.63 and 128,506.94 is: 192,756.56
Step by Step Solution
- Step 1: Write the proportion equation
465,445.72 : 698,154.63 = 128,506.94 : x - Step 2: Convert to fraction form
465,445.72/698,154.63 = 128,506.94/x - Step 3: Cross multiply
465,445.72x = 698,154.63 × 128,506.94 - Step 4: Simplify right side
465,445.72x = 89,717,715,148.13 - Step 5: Solve for x
x = 89,717,715,148.13/465,445.72 - Step 6: Final answer
x = 192,756.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.