Finding the Fourth Proportional to 1,252,823.68, 1,728,901.20 and 679,863.70
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Solution
The fourth proportional to 1,252,823.68, 1,728,901.20 and 679,863.70 is: 938,214.36
Step by Step Solution
- Step 1: Write the proportion equation
1,252,823.68 : 1,728,901.20 = 679,863.70 : x - Step 2: Convert to fraction form
1,252,823.68/1,728,901.20 = 679,863.70/x - Step 3: Cross multiply
1,252,823.68x = 1,728,901.20 × 679,863.70 - Step 4: Simplify right side
1,252,823.68x = 1,175,417,166,766.44 - Step 5: Solve for x
x = 1,175,417,166,766.44/1,252,823.68 - Step 6: Final answer
x = 938,214.36
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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.