Finding the Fourth Proportional to 1,318,635.36, 1,979,567.76 and 869,731.68
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Solution
The fourth proportional to 1,318,635.36, 1,979,567.76 and 869,731.68 is: 1,305,662.54
Step by Step Solution
- Step 1: Write the proportion equation
1,318,635.36 : 1,979,567.76 = 869,731.68 : x - Step 2: Convert to fraction form
1,318,635.36/1,979,567.76 = 869,731.68/x - Step 3: Cross multiply
1,318,635.36x = 1,979,567.76 × 869,731.68 - Step 4: Simplify right side
1,318,635.36x = 1,721,692,793,578.64 - Step 5: Solve for x
x = 1,721,692,793,578.64/1,318,635.36 - Step 6: Final answer
x = 1,305,662.54
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.