Finding the Fourth Proportional to 1,918,642.08, 2,647,656.66 and 1,059,183.90
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Solution
The fourth proportional to 1,918,642.08, 2,647,656.66 and 1,059,183.90 is: 1,461,635.46
Step by Step Solution
- Step 1: Write the proportion equation
1,918,642.08 : 2,647,656.66 = 1,059,183.90 : x - Step 2: Convert to fraction form
1,918,642.08/2,647,656.66 = 1,059,183.90/x - Step 3: Cross multiply
1,918,642.08x = 2,647,656.66 × 1,059,183.90 - Step 4: Simplify right side
1,918,642.08x = 2,804,355,306,999.77 - Step 5: Solve for x
x = 2,804,355,306,999.77/1,918,642.08 - Step 6: Final answer
x = 1,461,635.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.