Finding the Fourth Proportional to 412,813.76, 569,687.70 and 229,055.68
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Solution
The fourth proportional to 412,813.76, 569,687.70 and 229,055.68 is: 316,099.45
Step by Step Solution
- Step 1: Write the proportion equation
412,813.76 : 569,687.70 = 229,055.68 : x - Step 2: Convert to fraction form
412,813.76/569,687.70 = 229,055.68/x - Step 3: Cross multiply
412,813.76x = 569,687.70 × 229,055.68 - Step 4: Simplify right side
412,813.76x = 130,490,203,511.14 - Step 5: Solve for x
x = 130,490,203,511.14/412,813.76 - Step 6: Final answer
x = 316,099.45
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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.