Finding the Fourth Proportional to 919,101.70, 1,378,652.55 and 682,905.70
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Solution
The fourth proportional to 919,101.70, 1,378,652.55 and 682,905.70 is: 1,024,358.55
Step by Step Solution
- Step 1: Write the proportion equation
919,101.70 : 1,378,652.55 = 682,905.70 : x - Step 2: Convert to fraction form
919,101.70/1,378,652.55 = 682,905.70/x - Step 3: Cross multiply
919,101.70x = 1,378,652.55 × 682,905.70 - Step 4: Simplify right side
919,101.70x = 941,489,684,714.54 - Step 5: Solve for x
x = 941,489,684,714.54/919,101.70 - Step 6: Final answer
x = 1,024,358.55
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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.