Finding the Fourth Proportional to 3,778,378.80, 5,214,214.55 and 2,059,495.62
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Solution
The fourth proportional to 3,778,378.80, 5,214,214.55 and 2,059,495.62 is: 2,842,132.19
Step by Step Solution
- Step 1: Write the proportion equation
3,778,378.80 : 5,214,214.55 = 2,059,495.62 : x - Step 2: Convert to fraction form
3,778,378.80/5,214,214.55 = 2,059,495.62/x - Step 3: Cross multiply
3,778,378.80x = 5,214,214.55 × 2,059,495.62 - Step 4: Simplify right side
3,778,378.80x = 10,738,652,017,167.79 - Step 5: Solve for x
x = 10,738,652,017,167.79/3,778,378.80 - Step 6: Final answer
x = 2,842,132.19
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1.5x scale
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.