Finding the Fourth Proportional to 1,982,699.65, 2,736,115.95 and 1,123,257.88
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Solution
The fourth proportional to 1,982,699.65, 2,736,115.95 and 1,123,257.88 is: 1,550,090.45
Step by Step Solution
- Step 1: Write the proportion equation
1,982,699.65 : 2,736,115.95 = 1,123,257.88 : x - Step 2: Convert to fraction form
1,982,699.65/2,736,115.95 = 1,123,257.88/x - Step 3: Cross multiply
1,982,699.65x = 2,736,115.95 × 1,123,257.88 - Step 4: Simplify right side
1,982,699.65x = 3,073,363,801,431.19 - Step 5: Solve for x
x = 3,073,363,801,431.19/1,982,699.65 - Step 6: Final answer
x = 1,550,090.45
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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.