Finding the Fourth Proportional to 346,713.70, 520,070.55 and 84,057.70
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Solution
The fourth proportional to 346,713.70, 520,070.55 and 84,057.70 is: 126,086.55
Step by Step Solution
- Step 1: Write the proportion equation
346,713.70 : 520,070.55 = 84,057.70 : x - Step 2: Convert to fraction form
346,713.70/520,070.55 = 84,057.70/x - Step 3: Cross multiply
346,713.70x = 520,070.55 × 84,057.70 - Step 4: Simplify right side
346,713.70x = 43,715,934,270.74 - Step 5: Solve for x
x = 43,715,934,270.74/346,713.70 - Step 6: Final answer
x = 126,086.55
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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.