Finding the Fourth Proportional to 715,176.24, 986,953.32 and 392,916.12
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Solution
The fourth proportional to 715,176.24, 986,953.32 and 392,916.12 is: 542,229.80
Step by Step Solution
- Step 1: Write the proportion equation
715,176.24 : 986,953.32 = 392,916.12 : x - Step 2: Convert to fraction form
715,176.24/986,953.32 = 392,916.12/x - Step 3: Cross multiply
715,176.24x = 986,953.32 × 392,916.12 - Step 4: Simplify right side
715,176.24x = 387,789,869,115.52 - Step 5: Solve for x
x = 387,789,869,115.52/715,176.24 - Step 6: Final answer
x = 542,229.80
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1.5x scale
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.