Finding the Fourth Proportional to 572,700.36, 790,721.88 and 357,936.96
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Solution
The fourth proportional to 572,700.36, 790,721.88 and 357,936.96 is: 494,200.12
Step by Step Solution
- Step 1: Write the proportion equation
572,700.36 : 790,721.88 = 357,936.96 : x - Step 2: Convert to fraction form
572,700.36/790,721.88 = 357,936.96/x - Step 3: Cross multiply
572,700.36x = 790,721.88 × 357,936.96 - Step 4: Simplify right side
572,700.36x = 283,028,585,932.69 - Step 5: Solve for x
x = 283,028,585,932.69/572,700.36 - Step 6: Final answer
x = 494,200.12
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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.