Finding the Fourth Proportional to 618,455.70, 927,683.55 and 369,623.70
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Solution
The fourth proportional to 618,455.70, 927,683.55 and 369,623.70 is: 554,435.55
Step by Step Solution
- Step 1: Write the proportion equation
618,455.70 : 927,683.55 = 369,623.70 : x - Step 2: Convert to fraction form
618,455.70/927,683.55 = 369,623.70/x - Step 3: Cross multiply
618,455.70x = 927,683.55 × 369,623.70 - Step 4: Simplify right side
618,455.70x = 342,893,826,180.14 - Step 5: Solve for x
x = 342,893,826,180.14/618,455.70 - Step 6: Final answer
x = 554,435.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.