Finding the Fourth Proportional to 1,291,331.23, 1,940,492.43 and 692,721.99
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Solution
The fourth proportional to 1,291,331.23, 1,940,492.43 and 692,721.99 is: 1,040,958.16
Step by Step Solution
- Step 1: Write the proportion equation
1,291,331.23 : 1,940,492.43 = 692,721.99 : x - Step 2: Convert to fraction form
1,291,331.23/1,940,492.43 = 692,721.99/x - Step 3: Cross multiply
1,291,331.23x = 1,940,492.43 × 692,721.99 - Step 4: Simplify right side
1,291,331.23x = 1,344,221,777,689.54 - Step 5: Solve for x
x = 1,344,221,777,689.54/1,291,331.23 - Step 6: Final answer
x = 1,040,958.16
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.