Finding the Fourth Proportional to 627,337.98, 865,729.62 and 340,858.80
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Solution
The fourth proportional to 627,337.98, 865,729.62 and 340,858.80 is: 470,386.89
Step by Step Solution
- Step 1: Write the proportion equation
627,337.98 : 865,729.62 = 340,858.80 : x - Step 2: Convert to fraction form
627,337.98/865,729.62 = 340,858.80/x - Step 3: Cross multiply
627,337.98x = 865,729.62 × 340,858.80 - Step 4: Simplify right side
627,337.98x = 295,091,559,397.66 - Step 5: Solve for x
x = 295,091,559,397.66/627,337.98 - Step 6: Final answer
x = 470,386.89
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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.