Finding the Fourth Proportional to 1,415,535.62, 2,121,203.18 and 1,039,721.54
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Solution
The fourth proportional to 1,415,535.62, 2,121,203.18 and 1,039,721.54 is: 1,558,039.66
Step by Step Solution
- Step 1: Write the proportion equation
1,415,535.62 : 2,121,203.18 = 1,039,721.54 : x - Step 2: Convert to fraction form
1,415,535.62/2,121,203.18 = 1,039,721.54/x - Step 3: Cross multiply
1,415,535.62x = 2,121,203.18 × 1,039,721.54 - Step 4: Simplify right side
1,415,535.62x = 2,205,460,636,962.50 - Step 5: Solve for x
x = 2,205,460,636,962.50/1,415,535.62 - Step 6: Final answer
x = 1,558,039.66
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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.