Finding the Fourth Proportional to 472,392,682.60, 708,589,023.90 and 437,955,305.80
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Solution
The fourth proportional to 472,392,682.60, 708,589,023.90 and 437,955,305.80 is: 656,932,958.70
Step by Step Solution
- Step 1: Write the proportion equation
472,392,682.60 : 708,589,023.90 = 437,955,305.80 : x - Step 2: Convert to fraction form
472,392,682.60/708,589,023.90 = 437,955,305.80/x - Step 3: Cross multiply
472,392,682.60x = 708,589,023.90 × 437,955,305.80 - Step 4: Simplify right side
472,392,682.60x = 310,330,322,648,648,000 - Step 5: Solve for x
x = 310,330,322,648,648,000/472,392,682.60 - Step 6: Final answer
x = 656,932,958.70
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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.