Finding the Fourth Proportional to 578,415.20, 867,622.80 and 410,125.55
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Solution
The fourth proportional to 578,415.20, 867,622.80 and 410,125.55 is: 615,188.33
Step by Step Solution
- Step 1: Write the proportion equation
578,415.20 : 867,622.80 = 410,125.55 : x - Step 2: Convert to fraction form
578,415.20/867,622.80 = 410,125.55/x - Step 3: Cross multiply
578,415.20x = 867,622.80 × 410,125.55 - Step 4: Simplify right side
578,415.20x = 355,834,278,042.54 - Step 5: Solve for x
x = 355,834,278,042.54/578,415.20 - Step 6: Final answer
x = 615,188.33
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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.