Finding the Fourth Proportional to 998,241.12, 1,377,569.70 and 545,532.12
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Solution
The fourth proportional to 998,241.12, 1,377,569.70 and 545,532.12 is: 752,832.66
Step by Step Solution
- Step 1: Write the proportion equation
998,241.12 : 1,377,569.70 = 545,532.12 : x - Step 2: Convert to fraction form
998,241.12/1,377,569.70 = 545,532.12/x - Step 3: Cross multiply
998,241.12x = 1,377,569.70 × 545,532.12 - Step 4: Simplify right side
998,241.12x = 751,508,518,888.76 - Step 5: Solve for x
x = 751,508,518,888.76/998,241.12 - Step 6: Final answer
x = 752,832.66
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1.5x scale
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.