Finding the Fourth Proportional to 513,328.60, 771,305.10 and 455,591.80
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Solution
The fourth proportional to 513,328.60, 771,305.10 and 455,591.80 is: 684,552.31
Step by Step Solution
- Step 1: Write the proportion equation
513,328.60 : 771,305.10 = 455,591.80 : x - Step 2: Convert to fraction form
513,328.60/771,305.10 = 455,591.80/x - Step 3: Cross multiply
513,328.60x = 771,305.10 × 455,591.80 - Step 4: Simplify right side
513,328.60x = 351,400,278,858.18 - Step 5: Solve for x
x = 351,400,278,858.18/513,328.60 - Step 6: Final answer
x = 684,552.31
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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.