Finding the Fourth Proportional to 2,630,278.80, 3,943,231.20 and 1,115,125.20
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Solution
The fourth proportional to 2,630,278.80, 3,943,231.20 and 1,115,125.20 is: 1,671,760.61
Step by Step Solution
- Step 1: Write the proportion equation
2,630,278.80 : 3,943,231.20 = 1,115,125.20 : x - Step 2: Convert to fraction form
2,630,278.80/3,943,231.20 = 1,115,125.20/x - Step 3: Cross multiply
2,630,278.80x = 3,943,231.20 × 1,115,125.20 - Step 4: Simplify right side
2,630,278.80x = 4,397,196,480,546.24 - Step 5: Solve for x
x = 4,397,196,480,546.24/2,630,278.80 - Step 6: Final answer
x = 1,671,760.61
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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.