Finding the Fourth Proportional to 4,386,661.92, 6,580,128.96 and 1,191,775.68
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Solution
The fourth proportional to 4,386,661.92, 6,580,128.96 and 1,191,775.68 is: 1,787,700.49
Step by Step Solution
- Step 1: Write the proportion equation
4,386,661.92 : 6,580,128.96 = 1,191,775.68 : x - Step 2: Convert to fraction form
4,386,661.92/6,580,128.96 = 1,191,775.68/x - Step 3: Cross multiply
4,386,661.92x = 6,580,128.96 × 1,191,775.68 - Step 4: Simplify right side
4,386,661.92x = 7,842,037,665,791.69 - Step 5: Solve for x
x = 7,842,037,665,791.69/4,386,661.92 - Step 6: Final answer
x = 1,787,700.49
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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.