Finding the Fourth Proportional to 1,199,315.21, 1,655,052.30 and 683,069.07
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Solution
The fourth proportional to 1,199,315.21, 1,655,052.30 and 683,069.07 is: 942,633.78
Step by Step Solution
- Step 1: Write the proportion equation
1,199,315.21 : 1,655,052.30 = 683,069.07 : x - Step 2: Convert to fraction form
1,199,315.21/1,655,052.30 = 683,069.07/x - Step 3: Cross multiply
1,199,315.21x = 1,655,052.30 × 683,069.07 - Step 4: Simplify right side
1,199,315.21x = 1,130,515,035,362.36 - Step 5: Solve for x
x = 1,130,515,035,362.36/1,199,315.21 - Step 6: Final answer
x = 942,633.78
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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.