Finding the Fourth Proportional to 663,133.20, 994,699.80 and 453,181.20
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Solution
The fourth proportional to 663,133.20, 994,699.80 and 453,181.20 is: 679,771.80
Step by Step Solution
- Step 1: Write the proportion equation
663,133.20 : 994,699.80 = 453,181.20 : x - Step 2: Convert to fraction form
663,133.20/994,699.80 = 453,181.20/x - Step 3: Cross multiply
663,133.20x = 994,699.80 × 453,181.20 - Step 4: Simplify right side
663,133.20x = 450,779,249,003.76 - Step 5: Solve for x
x = 450,779,249,003.76/663,133.20 - Step 6: Final answer
x = 679,771.80
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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.