Finding the Fourth Proportional to 697,660.20, 1,045,415.10 and 519,330.60
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Solution
The fourth proportional to 697,660.20, 1,045,415.10 and 519,330.60 is: 778,195.53
Step by Step Solution
- Step 1: Write the proportion equation
697,660.20 : 1,045,415.10 = 519,330.60 : x - Step 2: Convert to fraction form
697,660.20/1,045,415.10 = 519,330.60/x - Step 3: Cross multiply
697,660.20x = 1,045,415.10 × 519,330.60 - Step 4: Simplify right side
697,660.20x = 542,916,051,132.06 - Step 5: Solve for x
x = 542,916,051,132.06/697,660.20 - Step 6: Final answer
x = 778,195.53
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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.