Finding the Fourth Proportional to 725,285.75, 1,087,926.80 and 192,806.53
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Solution
The fourth proportional to 725,285.75, 1,087,926.80 and 192,806.53 is: 289,209.31
Step by Step Solution
- Step 1: Write the proportion equation
725,285.75 : 1,087,926.80 = 192,806.53 : x - Step 2: Convert to fraction form
725,285.75/1,087,926.80 = 192,806.53/x - Step 3: Cross multiply
725,285.75x = 1,087,926.80 × 192,806.53 - Step 4: Simplify right side
725,285.75x = 209,759,387,518.15 - Step 5: Solve for x
x = 209,759,387,518.15/725,285.75 - Step 6: Final answer
x = 289,209.31
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1.5x scale
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.