Finding the Fourth Proportional to 808,078.05, 1,115,155.49 and 445,515.98
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Solution
The fourth proportional to 808,078.05, 1,115,155.49 and 445,515.98 is: 614,816.33
Step by Step Solution
- Step 1: Write the proportion equation
808,078.05 : 1,115,155.49 = 445,515.98 : x - Step 2: Convert to fraction form
808,078.05/1,115,155.49 = 445,515.98/x - Step 3: Cross multiply
808,078.05x = 1,115,155.49 × 445,515.98 - Step 4: Simplify right side
808,078.05x = 496,819,583,176.37 - Step 5: Solve for x
x = 496,819,583,176.37/808,078.05 - Step 6: Final answer
x = 614,816.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.