Finding the Fourth Proportional to 865,614.15, 1,194,609.34 and 478,421.26
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Solution
The fourth proportional to 865,614.15, 1,194,609.34 and 478,421.26 is: 660,255.50
Step by Step Solution
- Step 1: Write the proportion equation
865,614.15 : 1,194,609.34 = 478,421.26 : x - Step 2: Convert to fraction form
865,614.15/1,194,609.34 = 478,421.26/x - Step 3: Cross multiply
865,614.15x = 1,194,609.34 × 478,421.26 - Step 4: Simplify right side
865,614.15x = 571,526,499,677.52 - Step 5: Solve for x
x = 571,526,499,677.52/865,614.15 - Step 6: Final answer
x = 660,255.50
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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.