Finding the Fourth Proportional to 1,289,604.14, 1,779,696.87 and 716,668.46
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Solution
The fourth proportional to 1,289,604.14, 1,779,696.87 and 716,668.46 is: 989,026.46
Step by Step Solution
- Step 1: Write the proportion equation
1,289,604.14 : 1,779,696.87 = 716,668.46 : x - Step 2: Convert to fraction form
1,289,604.14/1,779,696.87 = 716,668.46/x - Step 3: Cross multiply
1,289,604.14x = 1,779,696.87 × 716,668.46 - Step 4: Simplify right side
1,289,604.14x = 1,275,452,615,089.72 - Step 5: Solve for x
x = 1,275,452,615,089.72/1,289,604.14 - Step 6: Final answer
x = 989,026.46
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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.