Finding the Fourth Proportional to 2,119,348.79, 2,924,778.24 and 1,214,105.75
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Solution
The fourth proportional to 2,119,348.79, 2,924,778.24 and 1,214,105.75 is: 1,675,509.99
Step by Step Solution
- Step 1: Write the proportion equation
2,119,348.79 : 2,924,778.24 = 1,214,105.75 : x - Step 2: Convert to fraction form
2,119,348.79/2,924,778.24 = 1,214,105.75/x - Step 3: Cross multiply
2,119,348.79x = 2,924,778.24 × 1,214,105.75 - Step 4: Simplify right side
2,119,348.79x = 3,550,990,078,658.88 - Step 5: Solve for x
x = 3,550,990,078,658.88/2,119,348.79 - Step 6: Final answer
x = 1,675,509.99
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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.