Finding the Fourth Proportional to 1,297,441.40, 1,790,432.62 and 716,652.95
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Solution
The fourth proportional to 1,297,441.40, 1,790,432.62 and 716,652.95 is: 988,960.90
Step by Step Solution
- Step 1: Write the proportion equation
1,297,441.40 : 1,790,432.62 = 716,652.95 : x - Step 2: Convert to fraction form
1,297,441.40/1,790,432.62 = 716,652.95/x - Step 3: Cross multiply
1,297,441.40x = 1,790,432.62 × 716,652.95 - Step 4: Simplify right side
1,297,441.40x = 1,283,118,808,155.43 - Step 5: Solve for x
x = 1,283,118,808,155.43/1,297,441.40 - Step 6: Final answer
x = 988,960.90
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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.