Finding the Fourth Proportional to 4,278,539.97, 6,415,491.74 and 1,879,575.93
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Solution
The fourth proportional to 4,278,539.97, 6,415,491.74 and 1,879,575.93 is: 2,818,345.49
Step by Step Solution
- Step 1: Write the proportion equation
4,278,539.97 : 6,415,491.74 = 1,879,575.93 : x - Step 2: Convert to fraction form
4,278,539.97/6,415,491.74 = 1,879,575.93/x - Step 3: Cross multiply
4,278,539.97x = 6,415,491.74 × 1,879,575.93 - Step 4: Simplify right side
4,278,539.97x = 12,058,403,844,219.94 - Step 5: Solve for x
x = 12,058,403,844,219.94/4,278,539.97 - Step 6: Final answer
x = 2,818,345.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.