Finding the Fourth Proportional to 659,453.10, 989,507.70 and 260,106.90
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Solution
The fourth proportional to 659,453.10, 989,507.70 and 260,106.90 is: 390,289.74
Step by Step Solution
- Step 1: Write the proportion equation
659,453.10 : 989,507.70 = 260,106.90 : x - Step 2: Convert to fraction form
659,453.10/989,507.70 = 260,106.90/x - Step 3: Cross multiply
659,453.10x = 989,507.70 × 260,106.90 - Step 4: Simplify right side
659,453.10x = 257,377,780,373.13 - Step 5: Solve for x
x = 257,377,780,373.13/659,453.10 - Step 6: Final answer
x = 390,289.74
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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.