Finding the Fourth Proportional to 687,026.14, 948,101.76 and 381,122.62
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Solution
The fourth proportional to 687,026.14, 948,101.76 and 381,122.62 is: 525,952.37
Step by Step Solution
- Step 1: Write the proportion equation
687,026.14 : 948,101.76 = 381,122.62 : x - Step 2: Convert to fraction form
687,026.14/948,101.76 = 381,122.62/x - Step 3: Cross multiply
687,026.14x = 948,101.76 × 381,122.62 - Step 4: Simplify right side
687,026.14x = 361,343,024,427.56 - Step 5: Solve for x
x = 361,343,024,427.56/687,026.14 - Step 6: Final answer
x = 525,952.37
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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.