Finding the Fourth Proportional to 1,439,089.84, 2,158,437.79 and 428,367.79
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Solution
The fourth proportional to 1,439,089.84, 2,158,437.79 and 428,367.79 is: 642,493.05
Step by Step Solution
- Step 1: Write the proportion equation
1,439,089.84 : 2,158,437.79 = 428,367.79 : x - Step 2: Convert to fraction form
1,439,089.84/2,158,437.79 = 428,367.79/x - Step 3: Cross multiply
1,439,089.84x = 2,158,437.79 × 428,367.79 - Step 4: Simplify right side
1,439,089.84x = 924,605,213,020.76 - Step 5: Solve for x
x = 924,605,213,020.76/1,439,089.84 - Step 6: Final answer
x = 642,493.05
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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.