Finding the Fourth Proportional to 1,209,785.99, 1,815,515.51 and 499,820.18
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Solution
The fourth proportional to 1,209,785.99, 1,815,515.51 and 499,820.18 is: 750,075.87
Step by Step Solution
- Step 1: Write the proportion equation
1,209,785.99 : 1,815,515.51 = 499,820.18 : x - Step 2: Convert to fraction form
1,209,785.99/1,815,515.51 = 499,820.18/x - Step 3: Cross multiply
1,209,785.99x = 1,815,515.51 × 499,820.18 - Step 4: Simplify right side
1,209,785.99x = 907,431,277,424.31 - Step 5: Solve for x
x = 907,431,277,424.31/1,209,785.99 - Step 6: Final answer
x = 750,075.87
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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.