Finding the Fourth Proportional to 528,673.64, 729,549.99 and 286,951.01
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Solution
The fourth proportional to 528,673.64, 729,549.99 and 286,951.01 is: 395,981.73
Step by Step Solution
- Step 1: Write the proportion equation
528,673.64 : 729,549.99 = 286,951.01 : x - Step 2: Convert to fraction form
528,673.64/729,549.99 = 286,951.01/x - Step 3: Cross multiply
528,673.64x = 729,549.99 × 286,951.01 - Step 4: Simplify right side
528,673.64x = 209,345,102,828.24 - Step 5: Solve for x
x = 209,345,102,828.24/528,673.64 - Step 6: Final answer
x = 395,981.73
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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.