Finding the Fourth Proportional to 575,433.20, 862,420.80 and 219,972.80
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Solution
The fourth proportional to 575,433.20, 862,420.80 and 219,972.80 is: 329,680.52
Step by Step Solution
- Step 1: Write the proportion equation
575,433.20 : 862,420.80 = 219,972.80 : x - Step 2: Convert to fraction form
575,433.20/862,420.80 = 219,972.80/x - Step 3: Cross multiply
575,433.20x = 862,420.80 × 219,972.80 - Step 4: Simplify right side
575,433.20x = 189,709,118,154.24 - Step 5: Solve for x
x = 189,709,118,154.24/575,433.20 - Step 6: Final answer
x = 329,680.52
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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.