Finding the Fourth Proportional to 855,731.13, 1,283,793.55 and 287,187.68
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Solution
The fourth proportional to 855,731.13, 1,283,793.55 and 287,187.68 is: 430,847.58
Step by Step Solution
- Step 1: Write the proportion equation
855,731.13 : 1,283,793.55 = 287,187.68 : x - Step 2: Convert to fraction form
855,731.13/1,283,793.55 = 287,187.68/x - Step 3: Cross multiply
855,731.13x = 1,283,793.55 × 287,187.68 - Step 4: Simplify right side
855,731.13x = 368,689,688,109.07 - Step 5: Solve for x
x = 368,689,688,109.07/855,731.13 - Step 6: Final answer
x = 430,847.58
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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.