Finding the Fourth Proportional to 782,972.80, 1,174,459.20 and 719,987.20
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Solution
The fourth proportional to 782,972.80, 1,174,459.20 and 719,987.20 is: 1,079,980.80
Step by Step Solution
- Step 1: Write the proportion equation
782,972.80 : 1,174,459.20 = 719,987.20 : x - Step 2: Convert to fraction form
782,972.80/1,174,459.20 = 719,987.20/x - Step 3: Cross multiply
782,972.80x = 1,174,459.20 × 719,987.20 - Step 4: Simplify right side
782,972.80x = 845,595,590,922.24 - Step 5: Solve for x
x = 845,595,590,922.24/782,972.80 - Step 6: Final answer
x = 1,079,980.80
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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.