Finding the Fourth Proportional to 780,752.70, 1,170,035.55 and 621,101.70
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Solution
The fourth proportional to 780,752.70, 1,170,035.55 and 621,101.70 is: 930,782.65
Step by Step Solution
- Step 1: Write the proportion equation
780,752.70 : 1,170,035.55 = 621,101.70 : x - Step 2: Convert to fraction form
780,752.70/1,170,035.55 = 621,101.70/x - Step 3: Cross multiply
780,752.70x = 1,170,035.55 × 621,101.70 - Step 4: Simplify right side
780,752.70x = 726,711,069,165.44 - Step 5: Solve for x
x = 726,711,069,165.44/780,752.70 - Step 6: Final answer
x = 930,782.65
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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.