Finding the Fourth Proportional to 493,679.56, 740,544.70 and 138,721.26
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Solution
The fourth proportional to 493,679.56, 740,544.70 and 138,721.26 is: 208,089.02
Step by Step Solution
- Step 1: Write the proportion equation
493,679.56 : 740,544.70 = 138,721.26 : x - Step 2: Convert to fraction form
493,679.56/740,544.70 = 138,721.26/x - Step 3: Cross multiply
493,679.56x = 740,544.70 × 138,721.26 - Step 4: Simplify right side
493,679.56x = 102,729,293,870.32 - Step 5: Solve for x
x = 102,729,293,870.32/493,679.56 - Step 6: Final answer
x = 208,089.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.