Finding the Fourth Proportional to 859,579.02, 1,289,201.76 and 816,905.19
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Solution
The fourth proportional to 859,579.02, 1,289,201.76 and 816,905.19 is: 1,225,199.29
Step by Step Solution
- Step 1: Write the proportion equation
859,579.02 : 1,289,201.76 = 816,905.19 : x - Step 2: Convert to fraction form
859,579.02/1,289,201.76 = 816,905.19/x - Step 3: Cross multiply
859,579.02x = 1,289,201.76 × 816,905.19 - Step 4: Simplify right side
859,579.02x = 1,053,155,608,701.13 - Step 5: Solve for x
x = 1,053,155,608,701.13/859,579.02 - Step 6: Final answer
x = 1,225,199.29
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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.