Finding the Fourth Proportional to 578,920.80, 868,251.60 and 380,632.80
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Solution
The fourth proportional to 578,920.80, 868,251.60 and 380,632.80 is: 570,863.99
Step by Step Solution
- Step 1: Write the proportion equation
578,920.80 : 868,251.60 = 380,632.80 : x - Step 2: Convert to fraction form
578,920.80/868,251.60 = 380,632.80/x - Step 3: Cross multiply
578,920.80x = 868,251.60 × 380,632.80 - Step 4: Simplify right side
578,920.80x = 330,485,037,612.48 - Step 5: Solve for x
x = 330,485,037,612.48/578,920.80 - Step 6: Final answer
x = 570,863.99
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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.