Finding the Fourth Proportional to 671,067.36, 925,720.07 and 398,941.70
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Solution
The fourth proportional to 671,067.36, 925,720.07 and 398,941.70 is: 550,329.75
Step by Step Solution
- Step 1: Write the proportion equation
671,067.36 : 925,720.07 = 398,941.70 : x - Step 2: Convert to fraction form
671,067.36/925,720.07 = 398,941.70/x - Step 3: Cross multiply
671,067.36x = 925,720.07 × 398,941.70 - Step 4: Simplify right side
671,067.36x = 369,308,331,826.61 - Step 5: Solve for x
x = 369,308,331,826.61/671,067.36 - Step 6: Final answer
x = 550,329.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.