Finding the Fourth Proportional to 761,272.56, 1,050,471.37 and 421,655.76
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Solution
The fourth proportional to 761,272.56, 1,050,471.37 and 421,655.76 is: 581,837.99
Step by Step Solution
- Step 1: Write the proportion equation
761,272.56 : 1,050,471.37 = 421,655.76 : x - Step 2: Convert to fraction form
761,272.56/1,050,471.37 = 421,655.76/x - Step 3: Cross multiply
761,272.56x = 1,050,471.37 × 421,655.76 - Step 4: Simplify right side
761,272.56x = 442,937,296,514.96 - Step 5: Solve for x
x = 442,937,296,514.96/761,272.56 - Step 6: Final answer
x = 581,837.99
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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.