Finding the Fourth Proportional to 478,506.79, 716,578.41 and 356,635.14
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Solution
The fourth proportional to 478,506.79, 716,578.41 and 356,635.14 is: 534,071.92
Step by Step Solution
- Step 1: Write the proportion equation
478,506.79 : 716,578.41 = 356,635.14 : x - Step 2: Convert to fraction form
478,506.79/716,578.41 = 356,635.14/x - Step 3: Cross multiply
478,506.79x = 716,578.41 × 356,635.14 - Step 4: Simplify right side
478,506.79x = 255,557,040,221.54 - Step 5: Solve for x
x = 255,557,040,221.54/478,506.79 - Step 6: Final answer
x = 534,071.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.