Finding the Fourth Proportional to 1,421,071.68, 2,127,787.80 and 1,082,499.48
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Solution
The fourth proportional to 1,421,071.68, 2,127,787.80 and 1,082,499.48 is: 1,620,839.55
Step by Step Solution
- Step 1: Write the proportion equation
1,421,071.68 : 2,127,787.80 = 1,082,499.48 : x - Step 2: Convert to fraction form
1,421,071.68/2,127,787.80 = 1,082,499.48/x - Step 3: Cross multiply
1,421,071.68x = 2,127,787.80 × 1,082,499.48 - Step 4: Simplify right side
1,421,071.68x = 2,303,329,182,990.97 - Step 5: Solve for x
x = 2,303,329,182,990.97/1,421,071.68 - Step 6: Final answer
x = 1,620,839.55
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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.