Finding the Fourth Proportional to 572,702.36, 790,724.64 and 357,938.96
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Solution
The fourth proportional to 572,702.36, 790,724.64 and 357,938.96 is: 494,202.88
Step by Step Solution
- Step 1: Write the proportion equation
572,702.36 : 790,724.64 = 357,938.96 : x - Step 2: Convert to fraction form
572,702.36/790,724.64 = 357,938.96/x - Step 3: Cross multiply
572,702.36x = 790,724.64 × 357,938.96 - Step 4: Simplify right side
572,702.36x = 283,031,155,287.97 - Step 5: Solve for x
x = 283,031,155,287.97/572,702.36 - Step 6: Final answer
x = 494,202.88
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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.