Finding the Fourth Proportional to 1,013,126.12, 1,398,529.98 and 686,885.96
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Solution
The fourth proportional to 1,013,126.12, 1,398,529.98 and 686,885.96 is: 948,184.63
Step by Step Solution
- Step 1: Write the proportion equation
1,013,126.12 : 1,398,529.98 = 686,885.96 : x - Step 2: Convert to fraction form
1,013,126.12/1,398,529.98 = 686,885.96/x - Step 3: Cross multiply
1,013,126.12x = 1,398,529.98 × 686,885.96 - Step 4: Simplify right side
1,013,126.12x = 960,630,611,397.41 - Step 5: Solve for x
x = 960,630,611,397.41/1,013,126.12 - Step 6: Final answer
x = 948,184.63
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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.