Finding the Fourth Proportional to 1,036,747.55, 1,555,121.33 and 438,384.35
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Solution
The fourth proportional to 1,036,747.55, 1,555,121.33 and 438,384.35 is: 657,576.53
Step by Step Solution
- Step 1: Write the proportion equation
1,036,747.55 : 1,555,121.33 = 438,384.35 : x - Step 2: Convert to fraction form
1,036,747.55/1,555,121.33 = 438,384.35/x - Step 3: Cross multiply
1,036,747.55x = 1,555,121.33 × 438,384.35 - Step 4: Simplify right side
1,036,747.55x = 681,740,853,423.19 - Step 5: Solve for x
x = 681,740,853,423.19/1,036,747.55 - Step 6: Final answer
x = 657,576.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.