Finding the Fourth Proportional to 2,378,844.09, 3,282,807.92 and 1,291,115.55
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Solution
The fourth proportional to 2,378,844.09, 3,282,807.92 and 1,291,115.55 is: 1,781,741.12
Step by Step Solution
- Step 1: Write the proportion equation
2,378,844.09 : 3,282,807.92 = 1,291,115.55 : x - Step 2: Convert to fraction form
2,378,844.09/3,282,807.92 = 1,291,115.55/x - Step 3: Cross multiply
2,378,844.09x = 3,282,807.92 × 1,291,115.55 - Step 4: Simplify right side
2,378,844.09x = 4,238,484,330,305.54 - Step 5: Solve for x
x = 4,238,484,330,305.54/2,378,844.09 - Step 6: Final answer
x = 1,781,741.12
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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.