Finding the Fourth Proportional to 397,918.80, 549,621.36 and 288,848.88
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Solution
The fourth proportional to 397,918.80, 549,621.36 and 288,848.88 is: 398,969.62
Step by Step Solution
- Step 1: Write the proportion equation
397,918.80 : 549,621.36 = 288,848.88 : x - Step 2: Convert to fraction form
397,918.80/549,621.36 = 288,848.88/x - Step 3: Cross multiply
397,918.80x = 549,621.36 × 288,848.88 - Step 4: Simplify right side
397,918.80x = 158,757,514,260.08 - Step 5: Solve for x
x = 158,757,514,260.08/397,918.80 - Step 6: Final answer
x = 398,969.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.