Finding the Fourth Proportional to 578,543.22, 867,489.84 and 396,379.62
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Solution
The fourth proportional to 578,543.22, 867,489.84 and 396,379.62 is: 594,346.77
Step by Step Solution
- Step 1: Write the proportion equation
578,543.22 : 867,489.84 = 396,379.62 : x - Step 2: Convert to fraction form
578,543.22/867,489.84 = 396,379.62/x - Step 3: Cross multiply
578,543.22x = 867,489.84 × 396,379.62 - Step 4: Simplify right side
578,543.22x = 343,855,293,133.06 - Step 5: Solve for x
x = 343,855,293,133.06/578,543.22 - Step 6: Final answer
x = 594,346.77
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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.