Finding the Fourth Proportional to 855,186.08, 1,180,281.98 and 492,539.36
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Solution
The fourth proportional to 855,186.08, 1,180,281.98 and 492,539.36 is: 679,776.42
Step by Step Solution
- Step 1: Write the proportion equation
855,186.08 : 1,180,281.98 = 492,539.36 : x - Step 2: Convert to fraction form
855,186.08/1,180,281.98 = 492,539.36/x - Step 3: Cross multiply
855,186.08x = 1,180,281.98 × 492,539.36 - Step 4: Simplify right side
855,186.08x = 581,335,326,378.67 - Step 5: Solve for x
x = 581,335,326,378.67/855,186.08 - Step 6: Final answer
x = 679,776.42
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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.