Finding the Fourth Proportional to 1,961,434.92, 2,706,632.64 and 1,101,827.28
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Solution
The fourth proportional to 1,961,434.92, 2,706,632.64 and 1,101,827.28 is: 1,520,438.76
Step by Step Solution
- Step 1: Write the proportion equation
1,961,434.92 : 2,706,632.64 = 1,101,827.28 : x - Step 2: Convert to fraction form
1,961,434.92/2,706,632.64 = 1,101,827.28/x - Step 3: Cross multiply
1,961,434.92x = 2,706,632.64 × 1,101,827.28 - Step 4: Simplify right side
1,961,434.92x = 2,982,241,679,690.42 - Step 5: Solve for x
x = 2,982,241,679,690.42/1,961,434.92 - Step 6: Final answer
x = 1,520,438.76
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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.