Finding the Fourth Proportional to 857,538.60, 1,183,395.20 and 470,346.09
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Solution
The fourth proportional to 857,538.60, 1,183,395.20 and 470,346.09 is: 649,073.18
Step by Step Solution
- Step 1: Write the proportion equation
857,538.60 : 1,183,395.20 = 470,346.09 : x - Step 2: Convert to fraction form
857,538.60/1,183,395.20 = 470,346.09/x - Step 3: Cross multiply
857,538.60x = 1,183,395.20 × 470,346.09 - Step 4: Simplify right side
857,538.60x = 556,605,305,244.77 - Step 5: Solve for x
x = 556,605,305,244.77/857,538.60 - Step 6: Final answer
x = 649,073.18
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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.