Finding the Fourth Proportional to 1,128,373.26, 1,556,746.44 and 741,397.10
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Solution
The fourth proportional to 1,128,373.26, 1,556,746.44 and 741,397.10 is: 1,022,859.49
Step by Step Solution
- Step 1: Write the proportion equation
1,128,373.26 : 1,556,746.44 = 741,397.10 : x - Step 2: Convert to fraction form
1,128,373.26/1,556,746.44 = 741,397.10/x - Step 3: Cross multiply
1,128,373.26x = 1,556,746.44 × 741,397.10 - Step 4: Simplify right side
1,128,373.26x = 1,154,167,296,051.32 - Step 5: Solve for x
x = 1,154,167,296,051.32/1,128,373.26 - Step 6: Final answer
x = 1,022,859.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.