Finding the Fourth Proportional to 528,674.82, 729,551.62 and 286,952.19
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Solution
The fourth proportional to 528,674.82, 729,551.62 and 286,952.19 is: 395,983.37
Step by Step Solution
- Step 1: Write the proportion equation
528,674.82 : 729,551.62 = 286,952.19 : x - Step 2: Convert to fraction form
528,674.82/729,551.62 = 286,952.19/x - Step 3: Cross multiply
528,674.82x = 729,551.62 × 286,952.19 - Step 4: Simplify right side
528,674.82x = 209,346,435,077.05 - Step 5: Solve for x
x = 209,346,435,077.05/528,674.82 - Step 6: Final answer
x = 395,983.37
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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.