Finding the Fourth Proportional to 488,430.12, 674,040.30 and 318,566.76
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Solution
The fourth proportional to 488,430.12, 674,040.30 and 318,566.76 is: 439,626.52
Step by Step Solution
- Step 1: Write the proportion equation
488,430.12 : 674,040.30 = 318,566.76 : x - Step 2: Convert to fraction form
488,430.12/674,040.30 = 318,566.76/x - Step 3: Cross multiply
488,430.12x = 674,040.30 × 318,566.76 - Step 4: Simplify right side
488,430.12x = 214,726,834,480.43 - Step 5: Solve for x
x = 214,726,834,480.43/488,430.12 - Step 6: Final answer
x = 439,626.52
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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.