Finding the Fourth Proportional to 876,919.05, 1,312,754.18 and 782,440.65
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Solution
The fourth proportional to 876,919.05, 1,312,754.18 and 782,440.65 is: 1,171,319.33
Step by Step Solution
- Step 1: Write the proportion equation
876,919.05 : 1,312,754.18 = 782,440.65 : x - Step 2: Convert to fraction form
876,919.05/1,312,754.18 = 782,440.65/x - Step 3: Cross multiply
876,919.05x = 1,312,754.18 × 782,440.65 - Step 4: Simplify right side
876,919.05x = 1,027,152,229,977.21 - Step 5: Solve for x
x = 1,027,152,229,977.21/876,919.05 - Step 6: Final answer
x = 1,171,319.33
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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.