Finding the Fourth Proportional to 1,252,398.95, 1,728,311.18 and 679,438.97
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Solution
The fourth proportional to 1,252,398.95, 1,728,311.18 and 679,438.97 is: 937,626.12
Step by Step Solution
- Step 1: Write the proportion equation
1,252,398.95 : 1,728,311.18 = 679,438.97 : x - Step 2: Convert to fraction form
1,252,398.95/1,728,311.18 = 679,438.97/x - Step 3: Cross multiply
1,252,398.95x = 1,728,311.18 × 679,438.97 - Step 4: Simplify right side
1,252,398.95x = 1,174,281,962,421.10 - Step 5: Solve for x
x = 1,174,281,962,421.10/1,252,398.95 - Step 6: Final answer
x = 937,626.12
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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.