Finding the Fourth Proportional to 769,913.84, 1,062,504.60 and 430,396.40
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Solution
The fourth proportional to 769,913.84, 1,062,504.60 and 430,396.40 is: 593,960.17
Step by Step Solution
- Step 1: Write the proportion equation
769,913.84 : 1,062,504.60 = 430,396.40 : x - Step 2: Convert to fraction form
769,913.84/1,062,504.60 = 430,396.40/x - Step 3: Cross multiply
769,913.84x = 1,062,504.60 × 430,396.40 - Step 4: Simplify right side
769,913.84x = 457,298,154,823.44 - Step 5: Solve for x
x = 457,298,154,823.44/769,913.84 - Step 6: Final answer
x = 593,960.17
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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.