Finding the Fourth Proportional to 1,754,268.78, 2,420,911.12 and 1,029,128.84
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Solution
The fourth proportional to 1,754,268.78, 2,420,911.12 and 1,029,128.84 is: 1,420,209.65
Step by Step Solution
- Step 1: Write the proportion equation
1,754,268.78 : 2,420,911.12 = 1,029,128.84 : x - Step 2: Convert to fraction form
1,754,268.78/2,420,911.12 = 1,029,128.84/x - Step 3: Cross multiply
1,754,268.78x = 2,420,911.12 × 1,029,128.84 - Step 4: Simplify right side
1,754,268.78x = 2,491,429,452,668.70 - Step 5: Solve for x
x = 2,491,429,452,668.70/1,754,268.78 - Step 6: Final answer
x = 1,420,209.65
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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.