Finding the Fourth Proportional to 1,321,756.24, 1,982,636.25 and 324,484.24
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Solution
The fourth proportional to 1,321,756.24, 1,982,636.25 and 324,484.24 is: 486,726.82
Step by Step Solution
- Step 1: Write the proportion equation
1,321,756.24 : 1,982,636.25 = 324,484.24 : x - Step 2: Convert to fraction form
1,321,756.24/1,982,636.25 = 324,484.24/x - Step 3: Cross multiply
1,321,756.24x = 1,982,636.25 × 324,484.24 - Step 4: Simplify right side
1,321,756.24x = 643,334,216,777.70 - Step 5: Solve for x
x = 643,334,216,777.70/1,321,756.24 - Step 6: Final answer
x = 486,726.82
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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.