Finding the Fourth Proportional to 1,930,679.20, 2,664,296.58 and 1,071,220.96
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Solution
The fourth proportional to 1,930,679.20, 2,664,296.58 and 1,071,220.96 is: 1,478,262.33
Step by Step Solution
- Step 1: Write the proportion equation
1,930,679.20 : 2,664,296.58 = 1,071,220.96 : x - Step 2: Convert to fraction form
1,930,679.20/2,664,296.58 = 1,071,220.96/x - Step 3: Cross multiply
1,930,679.20x = 2,664,296.58 × 1,071,220.96 - Step 4: Simplify right side
1,930,679.20x = 2,854,050,340,152.32 - Step 5: Solve for x
x = 2,854,050,340,152.32/1,930,679.20 - Step 6: Final answer
x = 1,478,262.33
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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.