Finding the Fourth Proportional to 1,313,405.70, 1,970,108.55 and 841,013.70
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Solution
The fourth proportional to 1,313,405.70, 1,970,108.55 and 841,013.70 is: 1,261,520.55
Step by Step Solution
- Step 1: Write the proportion equation
1,313,405.70 : 1,970,108.55 = 841,013.70 : x - Step 2: Convert to fraction form
1,313,405.70/1,970,108.55 = 841,013.70/x - Step 3: Cross multiply
1,313,405.70x = 1,970,108.55 × 841,013.70 - Step 4: Simplify right side
1,313,405.70x = 1,656,888,281,037.14 - Step 5: Solve for x
x = 1,656,888,281,037.14/1,313,405.70 - Step 6: Final answer
x = 1,261,520.55
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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.