Finding the Fourth Proportional to 1,190,389.84, 1,642,749.85 and 646,536.26
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Solution
The fourth proportional to 1,190,389.84, 1,642,749.85 and 646,536.26 is: 892,226.49
Step by Step Solution
- Step 1: Write the proportion equation
1,190,389.84 : 1,642,749.85 = 646,536.26 : x - Step 2: Convert to fraction form
1,190,389.84/1,642,749.85 = 646,536.26/x - Step 3: Cross multiply
1,190,389.84x = 1,642,749.85 × 646,536.26 - Step 4: Simplify right side
1,190,389.84x = 1,062,097,344,134.56 - Step 5: Solve for x
x = 1,062,097,344,134.56/1,190,389.84 - Step 6: Final answer
x = 892,226.49
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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.