Finding the Fourth Proportional to 3,027,279.91, 4,178,658.62 and 1,803,969.18
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Solution
The fourth proportional to 3,027,279.91, 4,178,658.62 and 1,803,969.18 is: 2,490,080.73
Step by Step Solution
- Step 1: Write the proportion equation
3,027,279.91 : 4,178,658.62 = 1,803,969.18 : x - Step 2: Convert to fraction form
3,027,279.91/4,178,658.62 = 1,803,969.18/x - Step 3: Cross multiply
3,027,279.91x = 4,178,658.62 × 1,803,969.18 - Step 4: Simplify right side
3,027,279.91x = 7,538,171,364,221.33 - Step 5: Solve for x
x = 7,538,171,364,221.33/3,027,279.91 - Step 6: Final answer
x = 2,490,080.73
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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.