Finding the Fourth Proportional to 3,390,567.12, 4,678,788.42 and 1,862,641.44
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Solution
The fourth proportional to 3,390,567.12, 4,678,788.42 and 1,862,641.44 is: 2,570,338.50
Step by Step Solution
- Step 1: Write the proportion equation
3,390,567.12 : 4,678,788.42 = 1,862,641.44 : x - Step 2: Convert to fraction form
3,390,567.12/4,678,788.42 = 1,862,641.44/x - Step 3: Cross multiply
3,390,567.12x = 4,678,788.42 × 1,862,641.44 - Step 4: Simplify right side
3,390,567.12x = 8,714,905,200,084.12 - Step 5: Solve for x
x = 8,714,905,200,084.12/3,390,567.12 - Step 6: Final answer
x = 2,570,338.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.