Finding the Fourth Proportional to 1,779,134.40, 2,668,707.84 and 431,291.52
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Solution
The fourth proportional to 1,779,134.40, 2,668,707.84 and 431,291.52 is: 646,938.79
Step by Step Solution
- Step 1: Write the proportion equation
1,779,134.40 : 2,668,707.84 = 431,291.52 : x - Step 2: Convert to fraction form
1,779,134.40/2,668,707.84 = 431,291.52/x - Step 3: Cross multiply
1,779,134.40x = 2,668,707.84 × 431,291.52 - Step 4: Simplify right side
1,779,134.40x = 1,150,991,060,749.52 - Step 5: Solve for x
x = 1,150,991,060,749.52/1,779,134.40 - Step 6: Final answer
x = 646,938.79
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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.