Finding the Fourth Proportional to 2,160,448.40, 3,239,117.40 and 1,214,109.20
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Solution
The fourth proportional to 2,160,448.40, 3,239,117.40 and 1,214,109.20 is: 1,820,289.82
Step by Step Solution
- Step 1: Write the proportion equation
2,160,448.40 : 3,239,117.40 = 1,214,109.20 : x - Step 2: Convert to fraction form
2,160,448.40/3,239,117.40 = 1,214,109.20/x - Step 3: Cross multiply
2,160,448.40x = 3,239,117.40 × 1,214,109.20 - Step 4: Simplify right side
2,160,448.40x = 3,932,642,235,220.08 - Step 5: Solve for x
x = 3,932,642,235,220.08/2,160,448.40 - Step 6: Final answer
x = 1,820,289.82
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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.