Finding the Fourth Proportional to 1,197,209.52, 1,652,431.92 and 688,207.20
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Solution
The fourth proportional to 1,197,209.52, 1,652,431.92 and 688,207.20 is: 949,888.49
Step by Step Solution
- Step 1: Write the proportion equation
1,197,209.52 : 1,652,431.92 = 688,207.20 : x - Step 2: Convert to fraction form
1,197,209.52/1,652,431.92 = 688,207.20/x - Step 3: Cross multiply
1,197,209.52x = 1,652,431.92 × 688,207.20 - Step 4: Simplify right side
1,197,209.52x = 1,137,215,544,853.82 - Step 5: Solve for x
x = 1,137,215,544,853.82/1,197,209.52 - Step 6: Final answer
x = 949,888.49
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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.