Finding the Fourth Proportional to 486,129.60, 670,897.05 and 268,381.55
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Solution
The fourth proportional to 486,129.60, 670,897.05 and 268,381.55 is: 370,387.63
Step by Step Solution
- Step 1: Write the proportion equation
486,129.60 : 670,897.05 = 268,381.55 : x - Step 2: Convert to fraction form
486,129.60/670,897.05 = 268,381.55/x - Step 3: Cross multiply
486,129.60x = 670,897.05 × 268,381.55 - Step 4: Simplify right side
486,129.60x = 180,056,390,840.24 - Step 5: Solve for x
x = 180,056,390,840.24/486,129.60 - Step 6: Final answer
x = 370,387.63
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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.