Finding the Fourth Proportional to 609,971.80, 914,957.70 and 539,987.80
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Solution
The fourth proportional to 609,971.80, 914,957.70 and 539,987.80 is: 809,981.70
Step by Step Solution
- Step 1: Write the proportion equation
609,971.80 : 914,957.70 = 539,987.80 : x - Step 2: Convert to fraction form
609,971.80/914,957.70 = 539,987.80/x - Step 3: Cross multiply
609,971.80x = 914,957.70 × 539,987.80 - Step 4: Simplify right side
609,971.80x = 494,065,995,516.06 - Step 5: Solve for x
x = 494,065,995,516.06/609,971.80 - Step 6: Final answer
x = 809,981.70
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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.