Finding the Fourth Proportional to 980,390.79, 1,352,909.82 and 544,806.68
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Solution
The fourth proportional to 980,390.79, 1,352,909.82 and 544,806.68 is: 751,816.84
Step by Step Solution
- Step 1: Write the proportion equation
980,390.79 : 1,352,909.82 = 544,806.68 : x - Step 2: Convert to fraction form
980,390.79/1,352,909.82 = 544,806.68/x - Step 3: Cross multiply
980,390.79x = 1,352,909.82 × 544,806.68 - Step 4: Simplify right side
980,390.79x = 737,074,302,652.07 - Step 5: Solve for x
x = 737,074,302,652.07/980,390.79 - Step 6: Final answer
x = 751,816.84
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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.