Finding the Fourth Proportional to 1,429,753.24, 1,971,966.18 and 971,221.36
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Solution
The fourth proportional to 1,429,753.24, 1,971,966.18 and 971,221.36 is: 1,339,542.81
Step by Step Solution
- Step 1: Write the proportion equation
1,429,753.24 : 1,971,966.18 = 971,221.36 : x - Step 2: Convert to fraction form
1,429,753.24/1,971,966.18 = 971,221.36/x - Step 3: Cross multiply
1,429,753.24x = 1,971,966.18 × 971,221.36 - Step 4: Simplify right side
1,429,753.24x = 1,915,215,675,213.60 - Step 5: Solve for x
x = 1,915,215,675,213.60/1,429,753.24 - Step 6: Final answer
x = 1,339,542.81
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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.