Finding the Fourth Proportional to 683,643.39, 943,446.90 and 377,739.48
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Solution
The fourth proportional to 683,643.39, 943,446.90 and 377,739.48 is: 521,290.99
Step by Step Solution
- Step 1: Write the proportion equation
683,643.39 : 943,446.90 = 377,739.48 : x - Step 2: Convert to fraction form
683,643.39/943,446.90 = 377,739.48/x - Step 3: Cross multiply
683,643.39x = 943,446.90 × 377,739.48 - Step 4: Simplify right side
683,643.39x = 356,377,134,807.68 - Step 5: Solve for x
x = 356,377,134,807.68/683,643.39 - Step 6: Final answer
x = 521,290.99
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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.