Finding the Fourth Proportional to 1,235,211.40, 1,704,203.16 and 691,260.76
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Solution
The fourth proportional to 1,235,211.40, 1,704,203.16 and 691,260.76 is: 953,722.39
Step by Step Solution
- Step 1: Write the proportion equation
1,235,211.40 : 1,704,203.16 = 691,260.76 : x - Step 2: Convert to fraction form
1,235,211.40/1,704,203.16 = 691,260.76/x - Step 3: Cross multiply
1,235,211.40x = 1,704,203.16 × 691,260.76 - Step 4: Simplify right side
1,235,211.40x = 1,178,048,771,576.00 - Step 5: Solve for x
x = 1,178,048,771,576.00/1,235,211.40 - Step 6: Final answer
x = 953,722.39
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1.5x scale
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.