Finding the Fourth Proportional to 1,424,452.79, 1,965,743.94 and 779,872.81
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Solution
The fourth proportional to 1,424,452.79, 1,965,743.94 and 779,872.81 is: 1,076,223.98
Step by Step Solution
- Step 1: Write the proportion equation
1,424,452.79 : 1,965,743.94 = 779,872.81 : x - Step 2: Convert to fraction form
1,424,452.79/1,965,743.94 = 779,872.81/x - Step 3: Cross multiply
1,424,452.79x = 1,965,743.94 × 779,872.81 - Step 4: Simplify right side
1,424,452.79x = 1,533,030,251,924.20 - Step 5: Solve for x
x = 1,533,030,251,924.20/1,424,452.79 - Step 6: Final answer
x = 1,076,223.98
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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.