Finding the Fourth Proportional to 708,589,964.70, 1,062,884,947.05 and 320,425,458.30
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Solution
The fourth proportional to 708,589,964.70, 1,062,884,947.05 and 320,425,458.30 is: 480,638,187.45
Step by Step Solution
- Step 1: Write the proportion equation
708,589,964.70 : 1,062,884,947.05 = 320,425,458.30 : x - Step 2: Convert to fraction form
708,589,964.70/1,062,884,947.05 = 320,425,458.30/x - Step 3: Cross multiply
708,589,964.70x = 1,062,884,947.05 × 320,425,458.30 - Step 4: Simplify right side
708,589,964.70x = 340,575,396,278,667,456 - Step 5: Solve for x
x = 340,575,396,278,667,456/708,589,964.70 - Step 6: Final answer
x = 480,638,187.45
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Similar ratio
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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.