Finding the Fourth Proportional to 1,387,189.26, 2,081,964.87 and 546,331.50
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Solution
The fourth proportional to 1,387,189.26, 2,081,964.87 and 546,331.50 is: 819,962.37
Step by Step Solution
- Step 1: Write the proportion equation
1,387,189.26 : 2,081,964.87 = 546,331.50 : x - Step 2: Convert to fraction form
1,387,189.26/2,081,964.87 = 546,331.50/x - Step 3: Cross multiply
1,387,189.26x = 2,081,964.87 × 546,331.50 - Step 4: Simplify right side
1,387,189.26x = 1,137,442,990,374.41 - Step 5: Solve for x
x = 1,137,442,990,374.41/1,387,189.26 - Step 6: Final answer
x = 819,962.37
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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.