Finding the Fourth Proportional to 780,531.68, 1,170,875.45 and 211,921.93
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Solution
The fourth proportional to 780,531.68, 1,170,875.45 and 211,921.93 is: 317,904.05
Step by Step Solution
- Step 1: Write the proportion equation
780,531.68 : 1,170,875.45 = 211,921.93 : x - Step 2: Convert to fraction form
780,531.68/1,170,875.45 = 211,921.93/x - Step 3: Cross multiply
780,531.68x = 1,170,875.45 × 211,921.93 - Step 4: Simplify right side
780,531.68x = 248,134,185,153.62 - Step 5: Solve for x
x = 248,134,185,153.62/780,531.68 - Step 6: Final answer
x = 317,904.05
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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.