Finding the Fourth Proportional to 1,989,951.99, 2,746,207.83 and 1,130,657.82
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Solution
The fourth proportional to 1,989,951.99, 2,746,207.83 and 1,130,657.82 is: 1,560,349.88
Step by Step Solution
- Step 1: Write the proportion equation
1,989,951.99 : 2,746,207.83 = 1,130,657.82 : x - Step 2: Convert to fraction form
1,989,951.99/2,746,207.83 = 1,130,657.82/x - Step 3: Cross multiply
1,989,951.99x = 2,746,207.83 × 1,130,657.82 - Step 4: Simplify right side
1,989,951.99x = 3,105,021,358,334.73 - Step 5: Solve for x
x = 3,105,021,358,334.73/1,989,951.99 - Step 6: Final answer
x = 1,560,349.88
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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.