Finding the Fourth Proportional to 642,602.10, 963,730.35 and 268,547.70
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Solution
The fourth proportional to 642,602.10, 963,730.35 and 268,547.70 is: 402,749.34
Step by Step Solution
- Step 1: Write the proportion equation
642,602.10 : 963,730.35 = 268,547.70 : x - Step 2: Convert to fraction form
642,602.10/963,730.35 = 268,547.70/x - Step 3: Cross multiply
642,602.10x = 963,730.35 × 268,547.70 - Step 4: Simplify right side
642,602.10x = 258,807,568,912.70 - Step 5: Solve for x
x = 258,807,568,912.70/642,602.10 - Step 6: Final answer
x = 402,749.34
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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.