Finding the Fourth Proportional to 489,878.68, 734,864.50 and 190,382.40
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Solution
The fourth proportional to 489,878.68, 734,864.50 and 190,382.40 is: 285,591.66
Step by Step Solution
- Step 1: Write the proportion equation
489,878.68 : 734,864.50 = 190,382.40 : x - Step 2: Convert to fraction form
489,878.68/734,864.50 = 190,382.40/x - Step 3: Cross multiply
489,878.68x = 734,864.50 × 190,382.40 - Step 4: Simplify right side
489,878.68x = 139,905,267,184.80 - Step 5: Solve for x
x = 139,905,267,184.80/489,878.68 - Step 6: Final answer
x = 285,591.66
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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.