Finding the Fourth Proportional to 551,143.28, 760,591.68 and 309,444.68
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Solution
The fourth proportional to 551,143.28, 760,591.68 and 309,444.68 is: 427,041.49
Step by Step Solution
- Step 1: Write the proportion equation
551,143.28 : 760,591.68 = 309,444.68 : x - Step 2: Convert to fraction form
551,143.28/760,591.68 = 309,444.68/x - Step 3: Cross multiply
551,143.28x = 760,591.68 × 309,444.68 - Step 4: Simplify right side
551,143.28x = 235,361,049,028.26 - Step 5: Solve for x
x = 235,361,049,028.26/551,143.28 - Step 6: Final answer
x = 427,041.49
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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.