Finding the Fourth Proportional to 3,478,130.60, 5,217,195.90 and 953,781.80
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Solution
The fourth proportional to 3,478,130.60, 5,217,195.90 and 953,781.80 is: 1,430,672.70
Step by Step Solution
- Step 1: Write the proportion equation
3,478,130.60 : 5,217,195.90 = 953,781.80 : x - Step 2: Convert to fraction form
3,478,130.60/5,217,195.90 = 953,781.80/x - Step 3: Cross multiply
3,478,130.60x = 5,217,195.90 × 953,781.80 - Step 4: Simplify right side
3,478,130.60x = 4,976,066,496,454.62 - Step 5: Solve for x
x = 4,976,066,496,454.62/3,478,130.60 - Step 6: Final answer
x = 1,430,672.70
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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.