Finding the Fourth Proportional to 1,407,820.68, 2,111,689.68 and 342,847.28
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Solution
The fourth proportional to 1,407,820.68, 2,111,689.68 and 342,847.28 is: 514,260.85
Step by Step Solution
- Step 1: Write the proportion equation
1,407,820.68 : 2,111,689.68 = 342,847.28 : x - Step 2: Convert to fraction form
1,407,820.68/2,111,689.68 = 342,847.28/x - Step 3: Cross multiply
1,407,820.68x = 2,111,689.68 × 342,847.28 - Step 4: Simplify right side
1,407,820.68x = 723,987,062,992.07 - Step 5: Solve for x
x = 723,987,062,992.07/1,407,820.68 - Step 6: Final answer
x = 514,260.85
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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.