Finding the Fourth Proportional to 935,505.68, 1,290,997.50 and 505,785.68
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Solution
The fourth proportional to 935,505.68, 1,290,997.50 and 505,785.68 is: 697,984.06
Step by Step Solution
- Step 1: Write the proportion equation
935,505.68 : 1,290,997.50 = 505,785.68 : x - Step 2: Convert to fraction form
935,505.68/1,290,997.50 = 505,785.68/x - Step 3: Cross multiply
935,505.68x = 1,290,997.50 × 505,785.68 - Step 4: Simplify right side
935,505.68x = 652,968,048,415.80 - Step 5: Solve for x
x = 652,968,048,415.80/935,505.68 - Step 6: Final answer
x = 697,984.06
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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.