Finding the Fourth Proportional to 690,890.60, 1,036,646.93 and 374,873.96
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Solution
The fourth proportional to 690,890.60, 1,036,646.93 and 374,873.96 is: 562,479.70
Step by Step Solution
- Step 1: Write the proportion equation
690,890.60 : 1,036,646.93 = 374,873.96 : x - Step 2: Convert to fraction form
690,890.60/1,036,646.93 = 374,873.96/x - Step 3: Cross multiply
690,890.60x = 1,036,646.93 × 374,873.96 - Step 4: Simplify right side
690,890.60x = 388,611,939,770.94 - Step 5: Solve for x
x = 388,611,939,770.94/690,890.60 - Step 6: Final answer
x = 562,479.70
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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.