Finding the Fourth Proportional to 915,445.80, 1,373,168.70 and 889,201.80
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Solution
The fourth proportional to 915,445.80, 1,373,168.70 and 889,201.80 is: 1,333,802.70
Step by Step Solution
- Step 1: Write the proportion equation
915,445.80 : 1,373,168.70 = 889,201.80 : x - Step 2: Convert to fraction form
915,445.80/1,373,168.70 = 889,201.80/x - Step 3: Cross multiply
915,445.80x = 1,373,168.70 × 889,201.80 - Step 4: Simplify right side
915,445.80x = 1,221,024,079,743.66 - Step 5: Solve for x
x = 1,221,024,079,743.66/915,445.80 - Step 6: Final answer
x = 1,333,802.70
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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.