Finding the Fourth Proportional to 513,431.28, 769,395.06 and 289,228.68
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Solution
The fourth proportional to 513,431.28, 769,395.06 and 289,228.68 is: 433,419.48
Step by Step Solution
- Step 1: Write the proportion equation
513,431.28 : 769,395.06 = 289,228.68 : x - Step 2: Convert to fraction form
513,431.28/769,395.06 = 289,228.68/x - Step 3: Cross multiply
513,431.28x = 769,395.06 × 289,228.68 - Step 4: Simplify right side
513,431.28x = 222,531,117,602.32 - Step 5: Solve for x
x = 222,531,117,602.32/513,431.28 - Step 6: Final answer
x = 433,419.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.