Finding the Fourth Proportional to 3,448,312.95, 4,758,819.50 and 1,920,420.08
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Solution
The fourth proportional to 3,448,312.95, 4,758,819.50 and 1,920,420.08 is: 2,650,261.92
Step by Step Solution
- Step 1: Write the proportion equation
3,448,312.95 : 4,758,819.50 = 1,920,420.08 : x - Step 2: Convert to fraction form
3,448,312.95/4,758,819.50 = 1,920,420.08/x - Step 3: Cross multiply
3,448,312.95x = 4,758,819.50 × 1,920,420.08 - Step 4: Simplify right side
3,448,312.95x = 9,138,932,505,902.51 - Step 5: Solve for x
x = 9,138,932,505,902.51/3,448,312.95 - Step 6: Final answer
x = 2,650,261.92
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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.