Finding the Fourth Proportional to 769,657.24, 1,154,673.74 and 542,395.99
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Solution
The fourth proportional to 769,657.24, 1,154,673.74 and 542,395.99 is: 813,726.39
Step by Step Solution
- Step 1: Write the proportion equation
769,657.24 : 1,154,673.74 = 542,395.99 : x - Step 2: Convert to fraction form
769,657.24/1,154,673.74 = 542,395.99/x - Step 3: Cross multiply
769,657.24x = 1,154,673.74 × 542,395.99 - Step 4: Simplify right side
769,657.24x = 626,290,406,334.30 - Step 5: Solve for x
x = 626,290,406,334.30/769,657.24 - Step 6: Final answer
x = 813,726.39
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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.