Finding the Fourth Proportional to 756,603.70, 1,134,905.55 and 383,355.70
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Solution
The fourth proportional to 756,603.70, 1,134,905.55 and 383,355.70 is: 575,033.55
Step by Step Solution
- Step 1: Write the proportion equation
756,603.70 : 1,134,905.55 = 383,355.70 : x - Step 2: Convert to fraction form
756,603.70/1,134,905.55 = 383,355.70/x - Step 3: Cross multiply
756,603.70x = 1,134,905.55 × 383,355.70 - Step 4: Simplify right side
756,603.70x = 435,072,511,554.14 - Step 5: Solve for x
x = 435,072,511,554.14/756,603.70 - Step 6: Final answer
x = 575,033.55
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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.