Finding the Fourth Proportional to 528,582.75, 729,444.58 and 286,865.26
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Solution
The fourth proportional to 528,582.75, 729,444.58 and 286,865.26 is: 395,874.26
Step by Step Solution
- Step 1: Write the proportion equation
528,582.75 : 729,444.58 = 286,865.26 : x - Step 2: Convert to fraction form
528,582.75/729,444.58 = 286,865.26/x - Step 3: Cross multiply
528,582.75x = 729,444.58 × 286,865.26 - Step 4: Simplify right side
528,582.75x = 209,252,307,178.90 - Step 5: Solve for x
x = 209,252,307,178.90/528,582.75 - Step 6: Final answer
x = 395,874.26
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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.