Finding the Fourth Proportional to 545,442.40, 752,815.68 and 330,700.08
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Solution
The fourth proportional to 545,442.40, 752,815.68 and 330,700.08 is: 456,429.87
Step by Step Solution
- Step 1: Write the proportion equation
545,442.40 : 752,815.68 = 330,700.08 : x - Step 2: Convert to fraction form
545,442.40/752,815.68 = 330,700.08/x - Step 3: Cross multiply
545,442.40x = 752,815.68 × 330,700.08 - Step 4: Simplify right side
545,442.40x = 248,956,205,601.25 - Step 5: Solve for x
x = 248,956,205,601.25/545,442.40 - Step 6: Final answer
x = 456,429.87
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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.