Finding the Fourth Proportional to 622,909.80, 934,364.70 and 307,981.80
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Solution
The fourth proportional to 622,909.80, 934,364.70 and 307,981.80 is: 461,972.70
Step by Step Solution
- Step 1: Write the proportion equation
622,909.80 : 934,364.70 = 307,981.80 : x - Step 2: Convert to fraction form
622,909.80/934,364.70 = 307,981.80/x - Step 3: Cross multiply
622,909.80x = 934,364.70 × 307,981.80 - Step 4: Simplify right side
622,909.80x = 287,767,322,162.46 - Step 5: Solve for x
x = 287,767,322,162.46/622,909.80 - Step 6: Final answer
x = 461,972.70
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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.