Finding the Fourth Proportional to 1,240,959.84, 1,861,449.36 and 679,688.16
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Solution
The fourth proportional to 1,240,959.84, 1,861,449.36 and 679,688.16 is: 1,019,537.50
Step by Step Solution
- Step 1: Write the proportion equation
1,240,959.84 : 1,861,449.36 = 679,688.16 : x - Step 2: Convert to fraction form
1,240,959.84/1,861,449.36 = 679,688.16/x - Step 3: Cross multiply
1,240,959.84x = 1,861,449.36 × 679,688.16 - Step 4: Simplify right side
1,240,959.84x = 1,265,205,090,431.58 - Step 5: Solve for x
x = 1,265,205,090,431.58/1,240,959.84 - Step 6: Final answer
x = 1,019,537.50
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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.