Finding the Fourth Proportional to 916,553.26, 1,374,501.84 and 317,353.53
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Solution
The fourth proportional to 916,553.26, 1,374,501.84 and 317,353.53 is: 475,916.71
Step by Step Solution
- Step 1: Write the proportion equation
916,553.26 : 1,374,501.84 = 317,353.53 : x - Step 2: Convert to fraction form
916,553.26/1,374,501.84 = 317,353.53/x - Step 3: Cross multiply
916,553.26x = 1,374,501.84 × 317,353.53 - Step 4: Simplify right side
916,553.26x = 436,203,010,915.50 - Step 5: Solve for x
x = 436,203,010,915.50/916,553.26 - Step 6: Final answer
x = 475,916.71
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1.5x scale
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.