Finding the Fourth Proportional to 620,416.16, 930,587.36 and 221,035.76
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Solution
The fourth proportional to 620,416.16, 930,587.36 and 221,035.76 is: 331,540.50
Step by Step Solution
- Step 1: Write the proportion equation
620,416.16 : 930,587.36 = 221,035.76 : x - Step 2: Convert to fraction form
620,416.16/930,587.36 = 221,035.76/x - Step 3: Cross multiply
620,416.16x = 930,587.36 × 221,035.76 - Step 4: Simplify right side
620,416.16x = 205,693,084,363.99 - Step 5: Solve for x
x = 205,693,084,363.99/620,416.16 - Step 6: Final answer
x = 331,540.50
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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.