Finding the Fourth Proportional to 1,280,206.44, 1,921,514.94 and 649,572.84
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Solution
The fourth proportional to 1,280,206.44, 1,921,514.94 and 649,572.84 is: 974,970.82
Step by Step Solution
- Step 1: Write the proportion equation
1,280,206.44 : 1,921,514.94 = 649,572.84 : x - Step 2: Convert to fraction form
1,280,206.44/1,921,514.94 = 649,572.84/x - Step 3: Cross multiply
1,280,206.44x = 1,921,514.94 × 649,572.84 - Step 4: Simplify right side
1,280,206.44x = 1,248,163,916,678.23 - Step 5: Solve for x
x = 1,248,163,916,678.23/1,280,206.44 - Step 6: Final answer
x = 974,970.82
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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.