Finding the Fourth Proportional to 513,604.10, 709,000.68 and 306,945.44
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Solution
The fourth proportional to 513,604.10, 709,000.68 and 306,945.44 is: 423,720.38
Step by Step Solution
- Step 1: Write the proportion equation
513,604.10 : 709,000.68 = 306,945.44 : x - Step 2: Convert to fraction form
513,604.10/709,000.68 = 306,945.44/x - Step 3: Cross multiply
513,604.10x = 709,000.68 × 306,945.44 - Step 4: Simplify right side
513,604.10x = 217,624,525,682.90 - Step 5: Solve for x
x = 217,624,525,682.90/513,604.10 - Step 6: Final answer
x = 423,720.38
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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.