Finding the Fourth Proportional to 1,252,428.18, 1,728,354.20 and 679,468.34
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Solution
The fourth proportional to 1,252,428.18, 1,728,354.20 and 679,468.34 is: 937,668.11
Step by Step Solution
- Step 1: Write the proportion equation
1,252,428.18 : 1,728,354.20 = 679,468.34 : x - Step 2: Convert to fraction form
1,252,428.18/1,728,354.20 = 679,468.34/x - Step 3: Cross multiply
1,252,428.18x = 1,728,354.20 × 679,468.34 - Step 4: Simplify right side
1,252,428.18x = 1,174,361,959,206.03 - Step 5: Solve for x
x = 1,174,361,959,206.03/1,252,428.18 - Step 6: Final answer
x = 937,668.11
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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.