Finding the Fourth Proportional to 798,959.70, 1,198,439.55 and 425,711.70
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Solution
The fourth proportional to 798,959.70, 1,198,439.55 and 425,711.70 is: 638,567.55
Step by Step Solution
- Step 1: Write the proportion equation
798,959.70 : 1,198,439.55 = 425,711.70 : x - Step 2: Convert to fraction form
798,959.70/1,198,439.55 = 425,711.70/x - Step 3: Cross multiply
798,959.70x = 1,198,439.55 × 425,711.70 - Step 4: Simplify right side
798,959.70x = 510,189,738,177.74 - Step 5: Solve for x
x = 510,189,738,177.74/798,959.70 - Step 6: Final answer
x = 638,567.55
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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.