Finding the Fourth Proportional to 1,421,907.21, 2,132,427.06 and 747,622.71
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Solution
The fourth proportional to 1,421,907.21, 2,132,427.06 and 747,622.71 is: 1,121,206.00
Step by Step Solution
- Step 1: Write the proportion equation
1,421,907.21 : 2,132,427.06 = 747,622.71 : x - Step 2: Convert to fraction form
1,421,907.21/2,132,427.06 = 747,622.71/x - Step 3: Cross multiply
1,421,907.21x = 2,132,427.06 × 747,622.71 - Step 4: Simplify right side
1,421,907.21x = 1,594,250,897,474.53 - Step 5: Solve for x
x = 1,594,250,897,474.53/1,421,907.21 - Step 6: Final answer
x = 1,121,206.00
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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.