Finding the Fourth Proportional to 627,538.68, 866,129.34 and 372,840.84
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Solution
The fourth proportional to 627,538.68, 866,129.34 and 372,840.84 is: 514,595.20
Step by Step Solution
- Step 1: Write the proportion equation
627,538.68 : 866,129.34 = 372,840.84 : x - Step 2: Convert to fraction form
627,538.68/866,129.34 = 372,840.84/x - Step 3: Cross multiply
627,538.68x = 866,129.34 × 372,840.84 - Step 4: Simplify right side
627,538.68x = 322,928,390,674.25 - Step 5: Solve for x
x = 322,928,390,674.25/627,538.68 - Step 6: Final answer
x = 514,595.20
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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.