Finding the Fourth Proportional to 984,644.70, 1,477,015.65 and 512,252.70
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Solution
The fourth proportional to 984,644.70, 1,477,015.65 and 512,252.70 is: 768,404.33
Step by Step Solution
- Step 1: Write the proportion equation
984,644.70 : 1,477,015.65 = 512,252.70 : x - Step 2: Convert to fraction form
984,644.70/1,477,015.65 = 512,252.70/x - Step 3: Cross multiply
984,644.70x = 1,477,015.65 × 512,252.70 - Step 4: Simplify right side
984,644.70x = 756,605,254,654.76 - Step 5: Solve for x
x = 756,605,254,654.76/984,644.70 - Step 6: Final answer
x = 768,404.33
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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.