Finding the Fourth Proportional to 689,771.97, 951,903.50 and 383,868.99
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Solution
The fourth proportional to 689,771.97, 951,903.50 and 383,868.99 is: 529,749.32
Step by Step Solution
- Step 1: Write the proportion equation
689,771.97 : 951,903.50 = 383,868.99 : x - Step 2: Convert to fraction form
689,771.97/951,903.50 = 383,868.99/x - Step 3: Cross multiply
689,771.97x = 951,903.50 × 383,868.99 - Step 4: Simplify right side
689,771.97x = 365,406,233,203.12 - Step 5: Solve for x
x = 365,406,233,203.12/689,771.97 - Step 6: Final answer
x = 529,749.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.