Finding the Fourth Proportional to 2,118,878.20, 3,178,415.24 and 699,058.36
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Solution
The fourth proportional to 2,118,878.20, 3,178,415.24 and 699,058.36 is: 1,048,619.85
Step by Step Solution
- Step 1: Write the proportion equation
2,118,878.20 : 3,178,415.24 = 699,058.36 : x - Step 2: Convert to fraction form
2,118,878.20/3,178,415.24 = 699,058.36/x - Step 3: Cross multiply
2,118,878.20x = 3,178,415.24 × 699,058.36 - Step 4: Simplify right side
2,118,878.20x = 2,221,897,745,073.41 - Step 5: Solve for x
x = 2,221,897,745,073.41/2,118,878.20 - Step 6: Final answer
x = 1,048,619.85
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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.