Finding the Fourth Proportional to 438,177.20, 657,265.80 and 432,272.30
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Solution
The fourth proportional to 438,177.20, 657,265.80 and 432,272.30 is: 648,408.45
Step by Step Solution
- Step 1: Write the proportion equation
438,177.20 : 657,265.80 = 432,272.30 : x - Step 2: Convert to fraction form
438,177.20/657,265.80 = 432,272.30/x - Step 3: Cross multiply
438,177.20x = 657,265.80 × 432,272.30 - Step 4: Simplify right side
438,177.20x = 284,117,799,077.34 - Step 5: Solve for x
x = 284,117,799,077.34/438,177.20 - Step 6: Final answer
x = 648,408.45
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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.