Finding the Fourth Proportional to 2,868,987.60, 3,959,230.32 and 1,579,873.68
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Solution
The fourth proportional to 2,868,987.60, 3,959,230.32 and 1,579,873.68 is: 2,180,240.78
Step by Step Solution
- Step 1: Write the proportion equation
2,868,987.60 : 3,959,230.32 = 1,579,873.68 : x - Step 2: Convert to fraction form
2,868,987.60/3,959,230.32 = 1,579,873.68/x - Step 3: Cross multiply
2,868,987.60x = 3,959,230.32 × 1,579,873.68 - Step 4: Simplify right side
2,868,987.60x = 6,255,083,775,625.98 - Step 5: Solve for x
x = 6,255,083,775,625.98/2,868,987.60 - Step 6: Final answer
x = 2,180,240.78
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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.