Finding the Fourth Proportional to 987,275.57, 1,480,619.93 and 418,648.28
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Solution
The fourth proportional to 987,275.57, 1,480,619.93 and 418,648.28 is: 627,847.99
Step by Step Solution
- Step 1: Write the proportion equation
987,275.57 : 1,480,619.93 = 418,648.28 : x - Step 2: Convert to fraction form
987,275.57/1,480,619.93 = 418,648.28/x - Step 3: Cross multiply
987,275.57x = 1,480,619.93 × 418,648.28 - Step 4: Simplify right side
987,275.57x = 619,858,977,531.88 - Step 5: Solve for x
x = 619,858,977,531.88/987,275.57 - Step 6: Final answer
x = 627,847.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.