Finding the Fourth Proportional to 1,128,905.10, 1,693,652.76 and 655,135.02
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Solution
The fourth proportional to 1,128,905.10, 1,693,652.76 and 655,135.02 is: 982,873.79
Step by Step Solution
- Step 1: Write the proportion equation
1,128,905.10 : 1,693,652.76 = 655,135.02 : x - Step 2: Convert to fraction form
1,128,905.10/1,693,652.76 = 655,135.02/x - Step 3: Cross multiply
1,128,905.10x = 1,693,652.76 × 655,135.02 - Step 4: Simplify right side
1,128,905.10x = 1,109,571,234,795.66 - Step 5: Solve for x
x = 1,109,571,234,795.66/1,128,905.10 - Step 6: Final answer
x = 982,873.79
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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.