Finding the Fourth Proportional to 1,409,740.23, 1,945,389.36 and 765,146.59
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Solution
The fourth proportional to 1,409,740.23, 1,945,389.36 and 765,146.59 is: 1,055,873.99
Step by Step Solution
- Step 1: Write the proportion equation
1,409,740.23 : 1,945,389.36 = 765,146.59 : x - Step 2: Convert to fraction form
1,409,740.23/1,945,389.36 = 765,146.59/x - Step 3: Cross multiply
1,409,740.23x = 1,945,389.36 × 765,146.59 - Step 4: Simplify right side
1,409,740.23x = 1,488,508,035,026.28 - Step 5: Solve for x
x = 1,488,508,035,026.28/1,409,740.23 - Step 6: Final answer
x = 1,055,873.99
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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.