Finding the Fourth Proportional to 767,720.16, 1,059,664.68 and 445,534.02
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Solution
The fourth proportional to 767,720.16, 1,059,664.68 and 445,534.02 is: 614,959.32
Step by Step Solution
- Step 1: Write the proportion equation
767,720.16 : 1,059,664.68 = 445,534.02 : x - Step 2: Convert to fraction form
767,720.16/1,059,664.68 = 445,534.02/x - Step 3: Cross multiply
767,720.16x = 1,059,664.68 × 445,534.02 - Step 4: Simplify right side
767,720.16x = 472,116,664,732.41 - Step 5: Solve for x
x = 472,116,664,732.41/767,720.16 - Step 6: Final answer
x = 614,959.32
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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.