Finding the Fourth Proportional to 528,598.19, 729,465.97 and 286,880.73
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Solution
The fourth proportional to 528,598.19, 729,465.97 and 286,880.73 is: 395,895.66
Step by Step Solution
- Step 1: Write the proportion equation
528,598.19 : 729,465.97 = 286,880.73 : x - Step 2: Convert to fraction form
528,598.19/729,465.97 = 286,880.73/x - Step 3: Cross multiply
528,598.19x = 729,465.97 × 286,880.73 - Step 4: Simplify right side
528,598.19x = 209,269,729,983.76 - Step 5: Solve for x
x = 209,269,729,983.76/528,598.19 - Step 6: Final answer
x = 395,895.66
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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.