Finding the Fourth Proportional to 678,119.22, 935,841.33 and 376,319.70
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Solution
The fourth proportional to 678,119.22, 935,841.33 and 376,319.70 is: 519,341.61
Step by Step Solution
- Step 1: Write the proportion equation
678,119.22 : 935,841.33 = 376,319.70 : x - Step 2: Convert to fraction form
678,119.22/935,841.33 = 376,319.70/x - Step 3: Cross multiply
678,119.22x = 935,841.33 × 376,319.70 - Step 4: Simplify right side
678,119.22x = 352,175,528,553.20 - Step 5: Solve for x
x = 352,175,528,553.20/678,119.22 - Step 6: Final answer
x = 519,341.61
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1.5x scale
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.