Finding the Fourth Proportional to 521,844.33, 720,132.99 and 306,998.23
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Solution
The fourth proportional to 521,844.33, 720,132.99 and 306,998.23 is: 423,650.39
Step by Step Solution
- Step 1: Write the proportion equation
521,844.33 : 720,132.99 = 306,998.23 : x - Step 2: Convert to fraction form
521,844.33/720,132.99 = 306,998.23/x - Step 3: Cross multiply
521,844.33x = 720,132.99 × 306,998.23 - Step 4: Simplify right side
521,844.33x = 221,079,553,294.61 - Step 5: Solve for x
x = 221,079,553,294.61/521,844.33 - Step 6: Final answer
x = 423,650.39
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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.