Finding the Fourth Proportional to 725,129.19, 1,087,320.15 and 325,427.31
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Solution
The fourth proportional to 725,129.19, 1,087,320.15 and 325,427.31 is: 487,973.28
Step by Step Solution
- Step 1: Write the proportion equation
725,129.19 : 1,087,320.15 = 325,427.31 : x - Step 2: Convert to fraction form
725,129.19/1,087,320.15 = 325,427.31/x - Step 3: Cross multiply
725,129.19x = 1,087,320.15 × 325,427.31 - Step 4: Simplify right side
725,129.19x = 353,843,671,523.30 - Step 5: Solve for x
x = 353,843,671,523.30/725,129.19 - Step 6: Final answer
x = 487,973.28
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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.