Finding the Fourth Proportional to 465,929.46, 698,895.14 and 128,971.08
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Solution
The fourth proportional to 465,929.46, 698,895.14 and 128,971.08 is: 193,456.88
Step by Step Solution
- Step 1: Write the proportion equation
465,929.46 : 698,895.14 = 128,971.08 : x - Step 2: Convert to fraction form
465,929.46/698,895.14 = 128,971.08/x - Step 3: Cross multiply
465,929.46x = 698,895.14 × 128,971.08 - Step 4: Simplify right side
465,929.46x = 90,137,260,367.70 - Step 5: Solve for x
x = 90,137,260,367.70/465,929.46 - Step 6: Final answer
x = 193,456.88
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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.