Finding the Fourth Proportional to 617,812.20, 926,718.30 and 485,101.80
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Solution
The fourth proportional to 617,812.20, 926,718.30 and 485,101.80 is: 727,652.70
Step by Step Solution
- Step 1: Write the proportion equation
617,812.20 : 926,718.30 = 485,101.80 : x - Step 2: Convert to fraction form
617,812.20/926,718.30 = 485,101.80/x - Step 3: Cross multiply
617,812.20x = 926,718.30 × 485,101.80 - Step 4: Simplify right side
617,812.20x = 449,552,715,422.94 - Step 5: Solve for x
x = 449,552,715,422.94/617,812.20 - Step 6: Final answer
x = 727,652.70
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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.