Finding the Fourth Proportional to 528,523.19, 729,363.98 and 286,805.81
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Solution
The fourth proportional to 528,523.19, 729,363.98 and 286,805.81 is: 395,793.09
Step by Step Solution
- Step 1: Write the proportion equation
528,523.19 : 729,363.98 = 286,805.81 : x - Step 2: Convert to fraction form
528,523.19/729,363.98 = 286,805.81/x - Step 3: Cross multiply
528,523.19x = 729,363.98 × 286,805.81 - Step 4: Simplify right side
528,523.19x = 209,185,827,068.72 - Step 5: Solve for x
x = 209,185,827,068.72/528,523.19 - Step 6: Final answer
x = 395,793.09
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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.