Finding the Fourth Proportional to 690,716.16, 953,173.88 and 384,792.12
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Solution
The fourth proportional to 690,716.16, 953,173.88 and 384,792.12 is: 531,005.09
Step by Step Solution
- Step 1: Write the proportion equation
690,716.16 : 953,173.88 = 384,792.12 : x - Step 2: Convert to fraction form
690,716.16/953,173.88 = 384,792.12/x - Step 3: Cross multiply
690,716.16x = 953,173.88 × 384,792.12 - Step 4: Simplify right side
690,716.16x = 366,773,798,013.83 - Step 5: Solve for x
x = 366,773,798,013.83/690,716.16 - Step 6: Final answer
x = 531,005.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.