Finding the Fourth Proportional to 745,058.41, 1,028,268.15 and 418,425.10
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Solution
The fourth proportional to 745,058.41, 1,028,268.15 and 418,425.10 is: 577,475.80
Step by Step Solution
- Step 1: Write the proportion equation
745,058.41 : 1,028,268.15 = 418,425.10 : x - Step 2: Convert to fraction form
745,058.41/1,028,268.15 = 418,425.10/x - Step 3: Cross multiply
745,058.41x = 1,028,268.15 × 418,425.10 - Step 4: Simplify right side
745,058.41x = 430,253,203,490.57 - Step 5: Solve for x
x = 430,253,203,490.57/745,058.41 - Step 6: Final answer
x = 577,475.80
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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.