Finding the Fourth Proportional to 1,554,645.76, 2,145,415.62 and 901,398.58
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Solution
The fourth proportional to 1,554,645.76, 2,145,415.62 and 901,398.58 is: 1,243,932.63
Step by Step Solution
- Step 1: Write the proportion equation
1,554,645.76 : 2,145,415.62 = 901,398.58 : x - Step 2: Convert to fraction form
1,554,645.76/2,145,415.62 = 901,398.58/x - Step 3: Cross multiply
1,554,645.76x = 2,145,415.62 × 901,398.58 - Step 4: Simplify right side
1,554,645.76x = 1,933,874,593,377.82 - Step 5: Solve for x
x = 1,933,874,593,377.82/1,554,645.76 - Step 6: Final answer
x = 1,243,932.63
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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.