Finding the Fourth Proportional to 656,874.63, 906,486.59 and 355,068.63
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Solution
The fourth proportional to 656,874.63, 906,486.59 and 355,068.63 is: 489,994.49
Step by Step Solution
- Step 1: Write the proportion equation
656,874.63 : 906,486.59 = 355,068.63 : x - Step 2: Convert to fraction form
656,874.63/906,486.59 = 355,068.63/x - Step 3: Cross multiply
656,874.63x = 906,486.59 × 355,068.63 - Step 4: Simplify right side
656,874.63x = 321,864,949,849.33 - Step 5: Solve for x
x = 321,864,949,849.33/656,874.63 - Step 6: Final answer
x = 489,994.49
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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.