Finding the Fourth Proportional to 1,026,088.26, 1,539,132.39 and 278,134.26
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Solution
The fourth proportional to 1,026,088.26, 1,539,132.39 and 278,134.26 is: 417,201.39
Step by Step Solution
- Step 1: Write the proportion equation
1,026,088.26 : 1,539,132.39 = 278,134.26 : x - Step 2: Convert to fraction form
1,026,088.26/1,539,132.39 = 278,134.26/x - Step 3: Cross multiply
1,026,088.26x = 1,539,132.39 × 278,134.26 - Step 4: Simplify right side
1,026,088.26x = 428,085,448,334.68 - Step 5: Solve for x
x = 428,085,448,334.68/1,026,088.26 - Step 6: Final answer
x = 417,201.39
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1.5x scale
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.