Finding the Fourth Proportional to 785,745.84, 1,178,694.72 and 312,324.96
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Solution
The fourth proportional to 785,745.84, 1,178,694.72 and 312,324.96 is: 468,517.63
Step by Step Solution
- Step 1: Write the proportion equation
785,745.84 : 1,178,694.72 = 312,324.96 : x - Step 2: Convert to fraction form
785,745.84/1,178,694.72 = 312,324.96/x - Step 3: Cross multiply
785,745.84x = 1,178,694.72 × 312,324.96 - Step 4: Simplify right side
785,745.84x = 368,135,781,276.21 - Step 5: Solve for x
x = 368,135,781,276.21/785,745.84 - Step 6: Final answer
x = 468,517.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.