Finding the Fourth Proportional to 4,260,279.92, 6,390,476.35 and 1,420,392.99
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Solution
The fourth proportional to 4,260,279.92, 6,390,476.35 and 1,420,392.99 is: 2,130,608.31
Step by Step Solution
- Step 1: Write the proportion equation
4,260,279.92 : 6,390,476.35 = 1,420,392.99 : x - Step 2: Convert to fraction form
4,260,279.92/6,390,476.35 = 1,420,392.99/x - Step 3: Cross multiply
4,260,279.92x = 6,390,476.35 × 1,420,392.99 - Step 4: Simplify right side
4,260,279.92x = 9,076,987,806,749.81 - Step 5: Solve for x
x = 9,076,987,806,749.81/4,260,279.92 - Step 6: Final answer
x = 2,130,608.31
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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.