Finding the Fourth Proportional to 1,405,219.08, 2,107,886.94 and 407,947.08
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Solution
The fourth proportional to 1,405,219.08, 2,107,886.94 and 407,947.08 is: 611,937.55
Step by Step Solution
- Step 1: Write the proportion equation
1,405,219.08 : 2,107,886.94 = 407,947.08 : x - Step 2: Convert to fraction form
1,405,219.08/2,107,886.94 = 407,947.08/x - Step 3: Cross multiply
1,405,219.08x = 2,107,886.94 × 407,947.08 - Step 4: Simplify right side
1,405,219.08x = 859,906,322,143.14 - Step 5: Solve for x
x = 859,906,322,143.14/1,405,219.08 - Step 6: Final answer
x = 611,937.55
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1.5x scale
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.