Finding the Fourth Proportional to 1,128,987.23, 1,559,295.44 and 743,525.75
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Solution
The fourth proportional to 1,128,987.23, 1,559,295.44 and 743,525.75 is: 1,026,917.11
Step by Step Solution
- Step 1: Write the proportion equation
1,128,987.23 : 1,559,295.44 = 743,525.75 : x - Step 2: Convert to fraction form
1,128,987.23/1,559,295.44 = 743,525.75/x - Step 3: Cross multiply
1,128,987.23x = 1,559,295.44 × 743,525.75 - Step 4: Simplify right side
1,128,987.23x = 1,159,376,299,983.47 - Step 5: Solve for x
x = 1,159,376,299,983.47/1,128,987.23 - Step 6: Final answer
x = 1,026,917.11
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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.