Finding the Fourth Proportional to 1,026,407.87, 1,539,430.36 and 278,512.19
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Solution
The fourth proportional to 1,026,407.87, 1,539,430.36 and 278,512.19 is: 417,719.05
Step by Step Solution
- Step 1: Write the proportion equation
1,026,407.87 : 1,539,430.36 = 278,512.19 : x - Step 2: Convert to fraction form
1,026,407.87/1,539,430.36 = 278,512.19/x - Step 3: Cross multiply
1,026,407.87x = 1,539,430.36 × 278,512.19 - Step 4: Simplify right side
1,026,407.87x = 428,750,120,916.09 - Step 5: Solve for x
x = 428,750,120,916.09/1,026,407.87 - Step 6: Final answer
x = 417,719.05
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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.