Finding the Fourth Proportional to 2,154,419.81, 2,973,232.34 and 1,187,547.92
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Solution
The fourth proportional to 2,154,419.81, 2,973,232.34 and 1,187,547.92 is: 1,638,889.44
Step by Step Solution
- Step 1: Write the proportion equation
2,154,419.81 : 2,973,232.34 = 1,187,547.92 : x - Step 2: Convert to fraction form
2,154,419.81/2,973,232.34 = 1,187,547.92/x - Step 3: Cross multiply
2,154,419.81x = 2,973,232.34 × 1,187,547.92 - Step 4: Simplify right side
2,154,419.81x = 3,530,855,860,239.83 - Step 5: Solve for x
x = 3,530,855,860,239.83/2,154,419.81 - Step 6: Final answer
x = 1,638,889.44
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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.