Finding the Fourth Proportional to 680,726.69, 939,395.25 and 374,796.75
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Solution
The fourth proportional to 680,726.69, 939,395.25 and 374,796.75 is: 517,215.34
Step by Step Solution
- Step 1: Write the proportion equation
680,726.69 : 939,395.25 = 374,796.75 : x - Step 2: Convert to fraction form
680,726.69/939,395.25 = 374,796.75/x - Step 3: Cross multiply
680,726.69x = 939,395.25 × 374,796.75 - Step 4: Simplify right side
680,726.69x = 352,082,286,665.44 - Step 5: Solve for x
x = 352,082,286,665.44/680,726.69 - Step 6: Final answer
x = 517,215.34
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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.