Finding the Fourth Proportional to 583,458.09, 805,170.96 and 315,186.09
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Solution
The fourth proportional to 583,458.09, 805,170.96 and 315,186.09 is: 434,956.15
Step by Step Solution
- Step 1: Write the proportion equation
583,458.09 : 805,170.96 = 315,186.09 : x - Step 2: Convert to fraction form
583,458.09/805,170.96 = 315,186.09/x - Step 3: Cross multiply
583,458.09x = 805,170.96 × 315,186.09 - Step 4: Simplify right side
583,458.09x = 253,778,686,663.95 - Step 5: Solve for x
x = 253,778,686,663.95/583,458.09 - Step 6: Final answer
x = 434,956.15
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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.