Finding the Fourth Proportional to 3,579,129.16, 4,939,257.24 and 1,947,544.72
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Solution
The fourth proportional to 3,579,129.16, 4,939,257.24 and 1,947,544.72 is: 2,687,643.82
Step by Step Solution
- Step 1: Write the proportion equation
3,579,129.16 : 4,939,257.24 = 1,947,544.72 : x - Step 2: Convert to fraction form
3,579,129.16/4,939,257.24 = 1,947,544.72/x - Step 3: Cross multiply
3,579,129.16x = 4,939,257.24 × 1,947,544.72 - Step 4: Simplify right side
3,579,129.16x = 9,619,424,358,483.77 - Step 5: Solve for x
x = 9,619,424,358,483.77/3,579,129.16 - Step 6: Final answer
x = 2,687,643.82
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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.