Finding the Fourth Proportional to 1,145,652.32, 1,581,028.05 and 629,439.65
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Solution
The fourth proportional to 1,145,652.32, 1,581,028.05 and 629,439.65 is: 868,642.02
Step by Step Solution
- Step 1: Write the proportion equation
1,145,652.32 : 1,581,028.05 = 629,439.65 : x - Step 2: Convert to fraction form
1,145,652.32/1,581,028.05 = 629,439.65/x - Step 3: Cross multiply
1,145,652.32x = 1,581,028.05 × 629,439.65 - Step 4: Simplify right side
1,145,652.32x = 995,161,742,432.18 - Step 5: Solve for x
x = 995,161,742,432.18/1,145,652.32 - Step 6: Final answer
x = 868,642.02
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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.