Finding the Fourth Proportional to 1,126,908.14, 1,690,380.77 and 317,312.08
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Solution
The fourth proportional to 1,126,908.14, 1,690,380.77 and 317,312.08 is: 475,973.34
Step by Step Solution
- Step 1: Write the proportion equation
1,126,908.14 : 1,690,380.77 = 317,312.08 : x - Step 2: Convert to fraction form
1,126,908.14/1,690,380.77 = 317,312.08/x - Step 3: Cross multiply
1,126,908.14x = 1,690,380.77 × 317,312.08 - Step 4: Simplify right side
1,126,908.14x = 536,378,232,308.19 - Step 5: Solve for x
x = 536,378,232,308.19/1,126,908.14 - Step 6: Final answer
x = 475,973.34
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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.