Finding the Fourth Proportional to 657,716.12, 986,878.68 and 357,839.48
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Solution
The fourth proportional to 657,716.12, 986,878.68 and 357,839.48 is: 536,924.89
Step by Step Solution
- Step 1: Write the proportion equation
657,716.12 : 986,878.68 = 357,839.48 : x - Step 2: Convert to fraction form
657,716.12/986,878.68 = 357,839.48/x - Step 3: Cross multiply
657,716.12x = 986,878.68 × 357,839.48 - Step 4: Simplify right side
657,716.12x = 353,144,153,674.29 - Step 5: Solve for x
x = 353,144,153,674.29/657,716.12 - Step 6: Final answer
x = 536,924.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.