Finding the Fourth Proportional to 643,208.68, 887,670.66 and 356,740.84
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Solution
The fourth proportional to 643,208.68, 887,670.66 and 356,740.84 is: 492,326.03
Step by Step Solution
- Step 1: Write the proportion equation
643,208.68 : 887,670.66 = 356,740.84 : x - Step 2: Convert to fraction form
643,208.68/887,670.66 = 356,740.84/x - Step 3: Cross multiply
643,208.68x = 887,670.66 × 356,740.84 - Step 4: Simplify right side
643,208.68x = 316,668,376,891.75 - Step 5: Solve for x
x = 316,668,376,891.75/643,208.68 - Step 6: Final answer
x = 492,326.03
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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.