Finding the Fourth Proportional to 2,138,478.60, 3,203,246.70 and 1,002,210.60
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Solution
The fourth proportional to 2,138,478.60, 3,203,246.70 and 1,002,210.60 is: 1,501,220.45
Step by Step Solution
- Step 1: Write the proportion equation
2,138,478.60 : 3,203,246.70 = 1,002,210.60 : x - Step 2: Convert to fraction form
2,138,478.60/3,203,246.70 = 1,002,210.60/x - Step 3: Cross multiply
2,138,478.60x = 3,203,246.70 × 1,002,210.60 - Step 4: Simplify right side
2,138,478.60x = 3,210,327,797,155.02 - Step 5: Solve for x
x = 3,210,327,797,155.02/2,138,478.60 - Step 6: Final answer
x = 1,501,220.45
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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.