Finding the Fourth Proportional to 4,201,620.40, 6,302,430.60 and 1,210,106.80
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Solution
The fourth proportional to 4,201,620.40, 6,302,430.60 and 1,210,106.80 is: 1,815,160.20
Step by Step Solution
- Step 1: Write the proportion equation
4,201,620.40 : 6,302,430.60 = 1,210,106.80 : x - Step 2: Convert to fraction form
4,201,620.40/6,302,430.60 = 1,210,106.80/x - Step 3: Cross multiply
4,201,620.40x = 6,302,430.60 × 1,210,106.80 - Step 4: Simplify right side
4,201,620.40x = 7,626,614,125,588.08 - Step 5: Solve for x
x = 7,626,614,125,588.08/4,201,620.40 - Step 6: Final answer
x = 1,815,160.20
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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.