Finding the Fourth Proportional to 670,374.88, 925,415.56 and 398,530.80
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Solution
The fourth proportional to 670,374.88, 925,415.56 and 398,530.80 is: 550,149.80
Step by Step Solution
- Step 1: Write the proportion equation
670,374.88 : 925,415.56 = 398,530.80 : x - Step 2: Convert to fraction form
670,374.88/925,415.56 = 398,530.80/x - Step 3: Cross multiply
670,374.88x = 925,415.56 × 398,530.80 - Step 4: Simplify right side
670,374.88x = 368,806,603,459.25 - Step 5: Solve for x
x = 368,806,603,459.25/670,374.88 - Step 6: Final answer
x = 550,149.80
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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.