Finding the Fourth Proportional to 1,026,452.70, 1,539,679.05 and 278,498.70
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Solution
The fourth proportional to 1,026,452.70, 1,539,679.05 and 278,498.70 is: 417,748.05
Step by Step Solution
- Step 1: Write the proportion equation
1,026,452.70 : 1,539,679.05 = 278,498.70 : x - Step 2: Convert to fraction form
1,026,452.70/1,539,679.05 = 278,498.70/x - Step 3: Cross multiply
1,026,452.70x = 1,539,679.05 × 278,498.70 - Step 4: Simplify right side
1,026,452.70x = 428,798,613,842.24 - Step 5: Solve for x
x = 428,798,613,842.24/1,026,452.70 - Step 6: Final answer
x = 417,748.05
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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.