Finding the Fourth Proportional to 903,905.34, 1,247,387.61 and 490,441.99
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Solution
The fourth proportional to 903,905.34, 1,247,387.61 and 490,441.99 is: 676,808.99
Step by Step Solution
- Step 1: Write the proportion equation
903,905.34 : 1,247,387.61 = 490,441.99 : x - Step 2: Convert to fraction form
903,905.34/1,247,387.61 = 490,441.99/x - Step 3: Cross multiply
903,905.34x = 1,247,387.61 × 490,441.99 - Step 4: Simplify right side
903,905.34x = 611,771,261,436.00 - Step 5: Solve for x
x = 611,771,261,436.00/903,905.34 - Step 6: Final answer
x = 676,808.99
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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.