Finding the Fourth Proportional to 1,383,263.34, 1,908,899.64 and 771,416.75
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Solution
The fourth proportional to 1,383,263.34, 1,908,899.64 and 771,416.75 is: 1,064,553.01
Step by Step Solution
- Step 1: Write the proportion equation
1,383,263.34 : 1,908,899.64 = 771,416.75 : x - Step 2: Convert to fraction form
1,383,263.34/1,908,899.64 = 771,416.75/x - Step 3: Cross multiply
1,383,263.34x = 1,908,899.64 × 771,416.75 - Step 4: Simplify right side
1,383,263.34x = 1,472,557,156,364.97 - Step 5: Solve for x
x = 1,472,557,156,364.97/1,383,263.34 - Step 6: Final answer
x = 1,064,553.01
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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.