Finding the Fourth Proportional to 1,129,797.12, 1,559,196.36 and 620,504.76
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Solution
The fourth proportional to 1,129,797.12, 1,559,196.36 and 620,504.76 is: 856,338.49
Step by Step Solution
- Step 1: Write the proportion equation
1,129,797.12 : 1,559,196.36 = 620,504.76 : x - Step 2: Convert to fraction form
1,129,797.12/1,559,196.36 = 620,504.76/x - Step 3: Cross multiply
1,129,797.12x = 1,559,196.36 × 620,504.76 - Step 4: Simplify right side
1,129,797.12x = 967,488,763,154.67 - Step 5: Solve for x
x = 967,488,763,154.67/1,129,797.12 - Step 6: Final answer
x = 856,338.49
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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.