Finding the Fourth Proportional to 497,485.80, 746,228.70 and 286,877.70
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Solution
The fourth proportional to 497,485.80, 746,228.70 and 286,877.70 is: 430,316.55
Step by Step Solution
- Step 1: Write the proportion equation
497,485.80 : 746,228.70 = 286,877.70 : x - Step 2: Convert to fraction form
497,485.80/746,228.70 = 286,877.70/x - Step 3: Cross multiply
497,485.80x = 746,228.70 × 286,877.70 - Step 4: Simplify right side
497,485.80x = 214,076,373,129.99 - Step 5: Solve for x
x = 214,076,373,129.99/497,485.80 - Step 6: Final answer
x = 430,316.55
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Similar ratio
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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.