Finding the Fourth Proportional to 1,102,009.12, 1,649,239.08 and 765,429.28
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Solution
The fourth proportional to 1,102,009.12, 1,649,239.08 and 765,429.28 is: 1,145,522.17
Step by Step Solution
- Step 1: Write the proportion equation
1,102,009.12 : 1,649,239.08 = 765,429.28 : x - Step 2: Convert to fraction form
1,102,009.12/1,649,239.08 = 765,429.28/x - Step 3: Cross multiply
1,102,009.12x = 1,649,239.08 × 765,429.28 - Step 4: Simplify right side
1,102,009.12x = 1,262,375,881,552.26 - Step 5: Solve for x
x = 1,262,375,881,552.26/1,102,009.12 - Step 6: Final answer
x = 1,145,522.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.