Finding the Fourth Proportional to 870,780.58, 1,201,688.97 and 483,621.03
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Solution
The fourth proportional to 870,780.58, 1,201,688.97 and 483,621.03 is: 667,403.56
Step by Step Solution
- Step 1: Write the proportion equation
870,780.58 : 1,201,688.97 = 483,621.03 : x - Step 2: Convert to fraction form
870,780.58/1,201,688.97 = 483,621.03/x - Step 3: Cross multiply
870,780.58x = 1,201,688.97 × 483,621.03 - Step 4: Simplify right side
870,780.58x = 581,162,055,597.46 - Step 5: Solve for x
x = 581,162,055,597.46/870,780.58 - Step 6: Final answer
x = 667,403.56
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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.