Finding the Fourth Proportional to 4,317,986.60, 6,476,979.90 and 1,326,165.80
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Solution
The fourth proportional to 4,317,986.60, 6,476,979.90 and 1,326,165.80 is: 1,989,248.70
Step by Step Solution
- Step 1: Write the proportion equation
4,317,986.60 : 6,476,979.90 = 1,326,165.80 : x - Step 2: Convert to fraction form
4,317,986.60/6,476,979.90 = 1,326,165.80/x - Step 3: Cross multiply
4,317,986.60x = 6,476,979.90 × 1,326,165.80 - Step 4: Simplify right side
4,317,986.60x = 8,589,549,230,667.42 - Step 5: Solve for x
x = 8,589,549,230,667.42/4,317,986.60 - Step 6: Final answer
x = 1,989,248.70
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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.