Finding the Fourth Proportional to 756,355.70, 1,134,533.55 and 543,779.30
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Solution
The fourth proportional to 756,355.70, 1,134,533.55 and 543,779.30 is: 815,668.95
Step by Step Solution
- Step 1: Write the proportion equation
756,355.70 : 1,134,533.55 = 543,779.30 : x - Step 2: Convert to fraction form
756,355.70/1,134,533.55 = 543,779.30/x - Step 3: Cross multiply
756,355.70x = 1,134,533.55 × 543,779.30 - Step 4: Simplify right side
756,355.70x = 616,935,859,645.52 - Step 5: Solve for x
x = 616,935,859,645.52/756,355.70 - Step 6: Final answer
x = 815,668.95
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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.