Finding the Fourth Proportional to 2,378,903.12, 3,282,889.92 and 1,291,175.10
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Solution
The fourth proportional to 2,378,903.12, 3,282,889.92 and 1,291,175.10 is: 1,781,823.60
Step by Step Solution
- Step 1: Write the proportion equation
2,378,903.12 : 3,282,889.92 = 1,291,175.10 : x - Step 2: Convert to fraction form
2,378,903.12/3,282,889.92 = 1,291,175.10/x - Step 3: Cross multiply
2,378,903.12x = 3,282,889.92 × 1,291,175.10 - Step 4: Simplify right side
2,378,903.12x = 4,238,785,720,744.99 - Step 5: Solve for x
x = 4,238,785,720,744.99/2,378,903.12 - Step 6: Final answer
x = 1,781,823.60
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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.