Finding the Fourth Proportional to 2,811,070.32, 3,879,342.36 and 1,587,769.44
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Solution
The fourth proportional to 2,811,070.32, 3,879,342.36 and 1,587,769.44 is: 2,191,158.72
Step by Step Solution
- Step 1: Write the proportion equation
2,811,070.32 : 3,879,342.36 = 1,587,769.44 : x - Step 2: Convert to fraction form
2,811,070.32/3,879,342.36 = 1,587,769.44/x - Step 3: Cross multiply
2,811,070.32x = 3,879,342.36 × 1,587,769.44 - Step 4: Simplify right side
2,811,070.32x = 6,159,501,246,505.48 - Step 5: Solve for x
x = 6,159,501,246,505.48/2,811,070.32 - Step 6: Final answer
x = 2,191,158.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.