Finding the Fourth Proportional to 790,106.68, 1,089,317.82 and 503,522.20
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Solution
The fourth proportional to 790,106.68, 1,089,317.82 and 503,522.20 is: 694,204.62
Step by Step Solution
- Step 1: Write the proportion equation
790,106.68 : 1,089,317.82 = 503,522.20 : x - Step 2: Convert to fraction form
790,106.68/1,089,317.82 = 503,522.20/x - Step 3: Cross multiply
790,106.68x = 1,089,317.82 × 503,522.20 - Step 4: Simplify right side
790,106.68x = 548,495,705,225.60 - Step 5: Solve for x
x = 548,495,705,225.60/790,106.68 - Step 6: Final answer
x = 694,204.62
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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.