Finding the Fourth Proportional to 981,721.19, 1,472,417.76 and 271,820.99
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Solution
The fourth proportional to 981,721.19, 1,472,417.76 and 271,820.99 is: 407,686.07
Step by Step Solution
- Step 1: Write the proportion equation
981,721.19 : 1,472,417.76 = 271,820.99 : x - Step 2: Convert to fraction form
981,721.19/1,472,417.76 = 271,820.99/x - Step 3: Cross multiply
981,721.19x = 1,472,417.76 × 271,820.99 - Step 4: Simplify right side
981,721.19x = 400,234,053,216.78 - Step 5: Solve for x
x = 400,234,053,216.78/981,721.19 - Step 6: Final answer
x = 407,686.07
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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.