Finding the Fourth Proportional to 1,341,123.20, 1,850,771.99 and 729,288.08
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Solution
The fourth proportional to 1,341,123.20, 1,850,771.99 and 729,288.08 is: 1,006,429.49
Step by Step Solution
- Step 1: Write the proportion equation
1,341,123.20 : 1,850,771.99 = 729,288.08 : x - Step 2: Convert to fraction form
1,341,123.20/1,850,771.99 = 729,288.08/x - Step 3: Cross multiply
1,341,123.20x = 1,850,771.99 × 729,288.08 - Step 4: Simplify right side
1,341,123.20x = 1,349,745,938,204.58 - Step 5: Solve for x
x = 1,349,745,938,204.58/1,341,123.20 - Step 6: Final answer
x = 1,006,429.49
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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.