Finding the Fourth Proportional to 3,660,641.76, 5,490,962.64 and 1,264,545.12
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Solution
The fourth proportional to 3,660,641.76, 5,490,962.64 and 1,264,545.12 is: 1,896,817.68
Step by Step Solution
- Step 1: Write the proportion equation
3,660,641.76 : 5,490,962.64 = 1,264,545.12 : x - Step 2: Convert to fraction form
3,660,641.76/5,490,962.64 = 1,264,545.12/x - Step 3: Cross multiply
3,660,641.76x = 5,490,962.64 × 1,264,545.12 - Step 4: Simplify right side
3,660,641.76x = 6,943,570,010,514.32 - Step 5: Solve for x
x = 6,943,570,010,514.32/3,660,641.76 - Step 6: Final answer
x = 1,896,817.68
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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.