Finding the Fourth Proportional to 442,916.70, 618,683.70 and 442,916.70
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Solution
The fourth proportional to 442,916.70, 618,683.70 and 442,916.70 is: 618,683.70
Step by Step Solution
- Step 1: Write the proportion equation
442,916.70 : 618,683.70 = 442,916.70 : x - Step 2: Convert to fraction form
442,916.70/618,683.70 = 442,916.70/x - Step 3: Cross multiply
442,916.70x = 618,683.70 × 442,916.70 - Step 4: Simplify right side
442,916.70x = 274,025,342,747.79 - Step 5: Solve for x
x = 274,025,342,747.79/442,916.70 - Step 6: Final answer
x = 618,683.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.