Finding the Fourth Proportional to 778,102.14, 1,074,048.84 and 455,916.54
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Solution
The fourth proportional to 778,102.14, 1,074,048.84 and 455,916.54 is: 629,321.79
Step by Step Solution
- Step 1: Write the proportion equation
778,102.14 : 1,074,048.84 = 455,916.54 : x - Step 2: Convert to fraction form
778,102.14/1,074,048.84 = 455,916.54/x - Step 3: Cross multiply
778,102.14x = 1,074,048.84 × 455,916.54 - Step 4: Simplify right side
778,102.14x = 489,676,630,923.81 - Step 5: Solve for x
x = 489,676,630,923.81/778,102.14 - Step 6: Final answer
x = 629,321.79
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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.