Finding the Fourth Proportional to 579,226.28, 868,984.14 and 408,780.79
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Solution
The fourth proportional to 579,226.28, 868,984.14 and 408,780.79 is: 613,273.32
Step by Step Solution
- Step 1: Write the proportion equation
579,226.28 : 868,984.14 = 408,780.79 : x - Step 2: Convert to fraction form
579,226.28/868,984.14 = 408,780.79/x - Step 3: Cross multiply
579,226.28x = 868,984.14 × 408,780.79 - Step 4: Simplify right side
579,226.28x = 355,224,023,246.67 - Step 5: Solve for x
x = 355,224,023,246.67/579,226.28 - Step 6: Final answer
x = 613,273.32
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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.