Finding the Fourth Proportional to 856,380.71, 1,181,789.11 and 474,410.63
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Solution
The fourth proportional to 856,380.71, 1,181,789.11 and 474,410.63 is: 654,677.66
Step by Step Solution
- Step 1: Write the proportion equation
856,380.71 : 1,181,789.11 = 474,410.63 : x - Step 2: Convert to fraction form
856,380.71/1,181,789.11 = 474,410.63/x - Step 3: Cross multiply
856,380.71x = 1,181,789.11 × 474,410.63 - Step 4: Simplify right side
856,380.71x = 560,653,316,202.24 - Step 5: Solve for x
x = 560,653,316,202.24/856,380.71 - Step 6: Final answer
x = 654,677.66
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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.