Finding the Fourth Proportional to 489,841.12, 735,041.49 and 190,282.70
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Solution
The fourth proportional to 489,841.12, 735,041.49 and 190,282.70 is: 285,532.75
Step by Step Solution
- Step 1: Write the proportion equation
489,841.12 : 735,041.49 = 190,282.70 : x - Step 2: Convert to fraction form
489,841.12/735,041.49 = 190,282.70/x - Step 3: Cross multiply
489,841.12x = 735,041.49 × 190,282.70 - Step 4: Simplify right side
489,841.12x = 139,865,680,453.27 - Step 5: Solve for x
x = 139,865,680,453.27/489,841.12 - Step 6: Final answer
x = 285,532.75
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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.