Finding the Fourth Proportional to 1,615,279.40, 2,229,088.74 and 970,709.48
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Solution
The fourth proportional to 1,615,279.40, 2,229,088.74 and 970,709.48 is: 1,339,580.99
Step by Step Solution
- Step 1: Write the proportion equation
1,615,279.40 : 2,229,088.74 = 970,709.48 : x - Step 2: Convert to fraction form
1,615,279.40/2,229,088.74 = 970,709.48/x - Step 3: Cross multiply
1,615,279.40x = 2,229,088.74 × 970,709.48 - Step 4: Simplify right side
1,615,279.40x = 2,163,797,571,679.26 - Step 5: Solve for x
x = 2,163,797,571,679.26/1,615,279.40 - Step 6: Final answer
x = 1,339,580.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.