Finding the Fourth Proportional to 4,220,129.84, 5,823,784.97 and 2,286,390.42
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Solution
The fourth proportional to 4,220,129.84, 5,823,784.97 and 2,286,390.42 is: 3,155,221.92
Step by Step Solution
- Step 1: Write the proportion equation
4,220,129.84 : 5,823,784.97 = 2,286,390.42 : x - Step 2: Convert to fraction form
4,220,129.84/5,823,784.97 = 2,286,390.42/x - Step 3: Cross multiply
4,220,129.84x = 5,823,784.97 × 2,286,390.42 - Step 4: Simplify right side
4,220,129.84x = 13,315,446,152,116.04 - Step 5: Solve for x
x = 13,315,446,152,116.04/4,220,129.84 - Step 6: Final answer
x = 3,155,221.92
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Double scale
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1.5x scale
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.