Finding the Fourth Proportional to 712,134.83, 1,073,201.01 and 641,128.41
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Solution
The fourth proportional to 712,134.83, 1,073,201.01 and 641,128.41 is: 966,192.95
Step by Step Solution
- Step 1: Write the proportion equation
712,134.83 : 1,073,201.01 = 641,128.41 : x - Step 2: Convert to fraction form
712,134.83/1,073,201.01 = 641,128.41/x - Step 3: Cross multiply
712,134.83x = 1,073,201.01 × 641,128.41 - Step 4: Simplify right side
712,134.83x = 688,059,654,747.46 - Step 5: Solve for x
x = 688,059,654,747.46/712,134.83 - Step 6: Final answer
x = 966,192.95
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.