Finding the Fourth Proportional to 779,728.68, 1,170,059.58 and 716,276.52
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Solution
The fourth proportional to 779,728.68, 1,170,059.58 and 716,276.52 is: 1,074,843.37
Step by Step Solution
- Step 1: Write the proportion equation
779,728.68 : 1,170,059.58 = 716,276.52 : x - Step 2: Convert to fraction form
779,728.68/1,170,059.58 = 716,276.52/x - Step 3: Cross multiply
779,728.68x = 1,170,059.58 × 716,276.52 - Step 4: Simplify right side
779,728.68x = 838,086,204,155.06 - Step 5: Solve for x
x = 838,086,204,155.06/779,728.68 - Step 6: Final answer
x = 1,074,843.37
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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.