Finding the Fourth Proportional to 528,552.09, 729,402.36 and 286,834.68
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Solution
The fourth proportional to 528,552.09, 729,402.36 and 286,834.68 is: 395,832.12
Step by Step Solution
- Step 1: Write the proportion equation
528,552.09 : 729,402.36 = 286,834.68 : x - Step 2: Convert to fraction form
528,552.09/729,402.36 = 286,834.68/x - Step 3: Cross multiply
528,552.09x = 729,402.36 × 286,834.68 - Step 4: Simplify right side
528,552.09x = 209,217,892,521.85 - Step 5: Solve for x
x = 209,217,892,521.85/528,552.09 - Step 6: Final answer
x = 395,832.12
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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.