Finding the Fourth Proportional to 828,305.70, 1,240,708.95 and 688,337.70
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Solution
The fourth proportional to 828,305.70, 1,240,708.95 and 688,337.70 is: 1,031,052.60
Step by Step Solution
- Step 1: Write the proportion equation
828,305.70 : 1,240,708.95 = 688,337.70 : x - Step 2: Convert to fraction form
828,305.70/1,240,708.95 = 688,337.70/x - Step 3: Cross multiply
828,305.70x = 1,240,708.95 × 688,337.70 - Step 4: Simplify right side
828,305.70x = 854,026,745,012.42 - Step 5: Solve for x
x = 854,026,745,012.42/828,305.70 - Step 6: Final answer
x = 1,031,052.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.