Finding the Fourth Proportional to 420,777.46, 580,605.08 and 239,492.48
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Solution
The fourth proportional to 420,777.46, 580,605.08 and 239,492.48 is: 330,461.02
Step by Step Solution
- Step 1: Write the proportion equation
420,777.46 : 580,605.08 = 239,492.48 : x - Step 2: Convert to fraction form
420,777.46/580,605.08 = 239,492.48/x - Step 3: Cross multiply
420,777.46x = 580,605.08 × 239,492.48 - Step 4: Simplify right side
420,777.46x = 139,050,550,509.80 - Step 5: Solve for x
x = 139,050,550,509.80/420,777.46 - Step 6: Final answer
x = 330,461.02
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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.