Finding the Fourth Proportional to 1,358,420.98, 1,874,581.32 and 777,624.88
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Solution
The fourth proportional to 1,358,420.98, 1,874,581.32 and 777,624.88 is: 1,073,099.65
Step by Step Solution
- Step 1: Write the proportion equation
1,358,420.98 : 1,874,581.32 = 777,624.88 : x - Step 2: Convert to fraction form
1,358,420.98/1,874,581.32 = 777,624.88/x - Step 3: Cross multiply
1,358,420.98x = 1,874,581.32 × 777,624.88 - Step 4: Simplify right side
1,358,420.98x = 1,457,721,074,015.24 - Step 5: Solve for x
x = 1,457,721,074,015.24/1,358,420.98 - Step 6: Final answer
x = 1,073,099.65
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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.