Finding the Fourth Proportional to 1,890,822.80, 2,609,239.56 and 1,031,376.08
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Solution
The fourth proportional to 1,890,822.80, 2,609,239.56 and 1,031,376.08 is: 1,423,246.68
Step by Step Solution
- Step 1: Write the proportion equation
1,890,822.80 : 2,609,239.56 = 1,031,376.08 : x - Step 2: Convert to fraction form
1,890,822.80/2,609,239.56 = 1,031,376.08/x - Step 3: Cross multiply
1,890,822.80x = 2,609,239.56 × 1,031,376.08 - Step 4: Simplify right side
1,890,822.80x = 2,691,107,269,173.72 - Step 5: Solve for x
x = 2,691,107,269,173.72/1,890,822.80 - Step 6: Final answer
x = 1,423,246.68
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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.