Finding the Fourth Proportional to 968,780.10, 1,337,101.56 and 641,516.26
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Solution
The fourth proportional to 968,780.10, 1,337,101.56 and 641,516.26 is: 885,414.96
Step by Step Solution
- Step 1: Write the proportion equation
968,780.10 : 1,337,101.56 = 641,516.26 : x - Step 2: Convert to fraction form
968,780.10/1,337,101.56 = 641,516.26/x - Step 3: Cross multiply
968,780.10x = 1,337,101.56 × 641,516.26 - Step 4: Simplify right side
968,780.10x = 857,772,392,011.37 - Step 5: Solve for x
x = 857,772,392,011.37/968,780.10 - Step 6: Final answer
x = 885,414.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.