Finding the Fourth Proportional to 1,420,704.18, 2,130,986.70 and 522,076.74
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Solution
The fourth proportional to 1,420,704.18, 2,130,986.70 and 522,076.74 is: 783,089.54
Step by Step Solution
- Step 1: Write the proportion equation
1,420,704.18 : 2,130,986.70 = 522,076.74 : x - Step 2: Convert to fraction form
1,420,704.18/2,130,986.70 = 522,076.74/x - Step 3: Cross multiply
1,420,704.18x = 2,130,986.70 × 522,076.74 - Step 4: Simplify right side
1,420,704.18x = 1,112,538,589,319.36 - Step 5: Solve for x
x = 1,112,538,589,319.36/1,420,704.18 - Step 6: Final answer
x = 783,089.54
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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.