Finding the Fourth Proportional to 724,687.96, 1,000,161.64 and 438,210.08
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Solution
The fourth proportional to 724,687.96, 1,000,161.64 and 438,210.08 is: 604,785.70
Step by Step Solution
- Step 1: Write the proportion equation
724,687.96 : 1,000,161.64 = 438,210.08 : x - Step 2: Convert to fraction form
724,687.96/1,000,161.64 = 438,210.08/x - Step 3: Cross multiply
724,687.96x = 1,000,161.64 × 438,210.08 - Step 4: Simplify right side
724,687.96x = 438,280,912,277.33 - Step 5: Solve for x
x = 438,280,912,277.33/724,687.96 - Step 6: Final answer
x = 604,785.70
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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.