Finding the Fourth Proportional to 4,128,698.80, 6,193,048.20 and 1,289,054.26
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Solution
The fourth proportional to 4,128,698.80, 6,193,048.20 and 1,289,054.26 is: 1,933,581.39
Step by Step Solution
- Step 1: Write the proportion equation
4,128,698.80 : 6,193,048.20 = 1,289,054.26 : x - Step 2: Convert to fraction form
4,128,698.80/6,193,048.20 = 1,289,054.26/x - Step 3: Cross multiply
4,128,698.80x = 6,193,048.20 × 1,289,054.26 - Step 4: Simplify right side
4,128,698.80x = 7,983,175,164,595.33 - Step 5: Solve for x
x = 7,983,175,164,595.33/4,128,698.80 - Step 6: Final answer
x = 1,933,581.39
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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.