Finding the Fourth Proportional to 745.68, 1,029.44 and 451
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Solution
The fourth proportional to 745.68, 1,029.44 and 451 is: 622.62
Step by Step Solution
- Step 1: Write the proportion equation
745.68 : 1,029.44 = 451 : x - Step 2: Convert to fraction form
745.68/1,029.44 = 451/x - Step 3: Cross multiply
745.68x = 1,029.44 × 451 - Step 4: Simplify right side
745.68x = 464,277.44 - Step 5: Solve for x
x = 464,277.44/745.68 - Step 6: Final answer
x = 622.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.