Finding the Fourth Proportional to 1,378,552.98, 2,065,937.76 and 872,207.55
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Solution
The fourth proportional to 1,378,552.98, 2,065,937.76 and 872,207.55 is: 1,307,114.44
Step by Step Solution
- Step 1: Write the proportion equation
1,378,552.98 : 2,065,937.76 = 872,207.55 : x - Step 2: Convert to fraction form
1,378,552.98/2,065,937.76 = 872,207.55/x - Step 3: Cross multiply
1,378,552.98x = 2,065,937.76 × 872,207.55 - Step 4: Simplify right side
1,378,552.98x = 1,801,926,512,102.09 - Step 5: Solve for x
x = 1,801,926,512,102.09/1,378,552.98 - Step 6: Final answer
x = 1,307,114.44
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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.