Finding the Fourth Proportional to 1,252,876.50, 1,728,970.79 and 679,916.79
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Solution
The fourth proportional to 1,252,876.50, 1,728,970.79 and 679,916.79 is: 938,285.83
Step by Step Solution
- Step 1: Write the proportion equation
1,252,876.50 : 1,728,970.79 = 679,916.79 : x - Step 2: Convert to fraction form
1,252,876.50/1,728,970.79 = 679,916.79/x - Step 3: Cross multiply
1,252,876.50x = 1,728,970.79 × 679,916.79 - Step 4: Simplify right side
1,252,876.50x = 1,175,556,266,140.98 - Step 5: Solve for x
x = 1,175,556,266,140.98/1,252,876.50 - Step 6: Final answer
x = 938,285.83
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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.