Finding the Fourth Proportional to 470,638.35, 649,495.26 and 289,456.74
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Solution
The fourth proportional to 470,638.35, 649,495.26 and 289,456.74 is: 399,459.12
Step by Step Solution
- Step 1: Write the proportion equation
470,638.35 : 649,495.26 = 289,456.74 : x - Step 2: Convert to fraction form
470,638.35/649,495.26 = 289,456.74/x - Step 3: Cross multiply
470,638.35x = 649,495.26 × 289,456.74 - Step 4: Simplify right side
470,638.35x = 188,000,780,605.05 - Step 5: Solve for x
x = 188,000,780,605.05/470,638.35 - Step 6: Final answer
x = 399,459.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.