Finding the Fourth Proportional to 745,327.62, 1,028,577.42 and 418,698.27
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Solution
The fourth proportional to 745,327.62, 1,028,577.42 and 418,698.27 is: 577,817.83
Step by Step Solution
- Step 1: Write the proportion equation
745,327.62 : 1,028,577.42 = 418,698.27 : x - Step 2: Convert to fraction form
745,327.62/1,028,577.42 = 418,698.27/x - Step 3: Cross multiply
745,327.62x = 1,028,577.42 × 418,698.27 - Step 4: Simplify right side
745,327.62x = 430,663,586,315.06 - Step 5: Solve for x
x = 430,663,586,315.06/745,327.62 - Step 6: Final answer
x = 577,817.83
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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.