Finding the Fourth Proportional to 781,528.74, 1,172,129.08 and 220,432.02
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Solution
The fourth proportional to 781,528.74, 1,172,129.08 and 220,432.02 is: 330,601.76
Step by Step Solution
- Step 1: Write the proportion equation
781,528.74 : 1,172,129.08 = 220,432.02 : x - Step 2: Convert to fraction form
781,528.74/1,172,129.08 = 220,432.02/x - Step 3: Cross multiply
781,528.74x = 1,172,129.08 × 220,432.02 - Step 4: Simplify right side
781,528.74x = 258,374,780,805.14 - Step 5: Solve for x
x = 258,374,780,805.14/781,528.74 - Step 6: Final answer
x = 330,601.76
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.