Finding the Fourth Proportional to 690,277.20, 952,396.56 and 403,867.68
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Solution
The fourth proportional to 690,277.20, 952,396.56 and 403,867.68 is: 557,228.59
Step by Step Solution
- Step 1: Write the proportion equation
690,277.20 : 952,396.56 = 403,867.68 : x - Step 2: Convert to fraction form
690,277.20/952,396.56 = 403,867.68/x - Step 3: Cross multiply
690,277.20x = 952,396.56 × 403,867.68 - Step 4: Simplify right side
690,277.20x = 384,642,189,127.18 - Step 5: Solve for x
x = 384,642,189,127.18/690,277.20 - Step 6: Final answer
x = 557,228.59
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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.